| FinalID | CommonName | Phylum | Subphylum | Superclass | Class | Subclass | Superorder | Order | Suborder | Superfamily | Family | Subfamily | Tribe | GenusComplex | Genus | SpeciesComplex | Species | Subspecies | Variety | TaxonomicAuthority | FinalIDAuthority | Source |
| Achnanthaceae | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | | | | | | | CAD_TWG | UCOB |
| Achnanthales | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | | | | | | | | | | | CAD_TWG | UCOB |
| Achnantheiopsis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnantheiopsis | | | | | Lange-Bertalot | CAD_TWG | CSUSM |
| Achnantheiopsis lanceolatoides | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnantheiopsis | | Achnantheiopsis lanceolatoides | | | (Sovereign) Lange-Bertalot | CAD_TWG | CSUSM |
| Achnanthes | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | | | | | CAD_TWG | UCOB |
| Achnanthes acares | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes acares | | | M.H.Hohn & Hellerman | CAD_TWG | CSUSM |
| Achnanthes brevipes | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes brevipes | | | Agardh | CAD_TWG | EcoAnalysts |
| Achnanthes brevipes var intermedia | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes brevipes | | Achnanthes brevipes var intermedia | (Kutzing) Cleve | CAD_TWG | EcoAnalysts |
| Achnanthes cf coarctata | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes cf coarctata | | | | CAD_TWG | CSUSM |
| Achnanthes coarctata | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes coarctata | | | (Brebisson ex W Smith) Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Achnanthes crenulata | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes crenulata | | | Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Achnanthes exigua var elliptica | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes exigua var elliptica | | | Hust. | CAD_TWG | CSUSM |
| Achnanthes inflata | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes inflata | | | (Kutzing) Grunow | CAD_TWG | UCOB |
| Achnanthes ingratiformis | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes ingratiformis | | | Lange-Bertalot | CAD_TWG | UCOB |
| Achnanthes lemmermannii | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes lemmermannii | | | Hustedt | CAD_TWG | CSUSM |
| Achnanthes sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes sp 1 | | | | CAD_TWG | EcoAnalysts |
| Achnanthes sp 1 PRW | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes sp 1 PRW | | | | CAD_TWG | UCOB |
| Achnanthes sp 18 | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes sp 18 | | | | CAD_TWG | CSUSM |
| Achnanthes sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes sp 3 | | | | CAD_TWG | CSUSM |
| Achnanthes sp 4 | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes sp 4 | | | | CAD_TWG | CSUSM |
| Achnanthes sp 5 | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Achnanthes | | Achnanthes sp 5 | | | | CAD_TWG | CSUSM |
| Achnanthidiaceae | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | | | | | | | CAD_TWG | UCOB |
| Achnanthidium | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | | | | | CAD_TWG | UCOB |
| Achnanthidium affine | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium affine | | | (Grunow) Czarnecki | CAD_TWG | UCOB |
| Achnanthidium alpestre | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium alpestre | | | (Lowe & Kociolek) Lowe & Kociolek in Johansen et a | CAD_TWG | UCOB |
| Achnanthidium atomus | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium atomus | | | (Hust.) Monnier, Lange-Bert. & Ector | CAD_TWG | CSUSM |
| Achnanthidium caledonicum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium caledonicum | | | | CAD_TWG | EcoAnalysts |
| Achnanthidium catenatum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium catenatum | | | (Bily and Marvan) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Achnanthidium cf caledonicum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium cf caledonicum | | | | CAD_TWG | CSUSM |
| Achnanthidium cf latecephalum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium cf latecephalum | | | Kobayasi 1997 | CAD_TWG | EcoAnalysts |
| Achnanthidium cf minutissimum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium cf minutissimum | | | (Kutzing) Czarnecki | CAD_TWG | EcoAnalysts |
| Achnanthidium crassum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium crassum | | | (Hustedt) Potapova & Ponader | CAD_TWG | CSUSM |
| Achnanthidium deflexum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium deflexum | | | (Reimer) Kingston | CAD_TWG | UCOB |
| Achnanthidium druartii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium druartii | | | Rimet & Coute | CAD_TWG | CSUSM |
| Achnanthidium eutrophilum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium eutrophilum | | | (Lange-Bertalot) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Achnanthidium exiguum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium exiguum | | | (Grunow) Czarnecki | CAD_TWG | UCOB |
| Achnanthidium exiguum var heterovalvum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium exiguum | | Achnanthidium exiguum var heterovalvum | (Krasske) Czarnecki | CAD_TWG | UCOB |
| Achnanthidium exile | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium exile | | | (Kutzing) Heiberg 1863 | CAD_TWG | MPSL-MLML |
| Achnanthidium gracillimum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium gracillimum | | | (Meister) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Achnanthidium jackii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium jackii | | | Rabenhorst | CAD_TWG | UCOB |
| Achnanthidium kranzii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium kranzii | | | (Lange-Bertalot) Round et Bukhtiyarova | CAD_TWG | CSUSM |
| Achnanthidium latecephalum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium latecephalum | | | H.Kobayasi | CAD_TWG | CSUSM |
| Achnanthidium lineare | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium lineare | | | W.Smith | CAD_TWG | CSUSM |
| Achnanthidium macrocephalum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium macrocephalum | | | (Hustedt) Round & Bukhtiyarova | CAD_TWG | UCOB |
| Achnanthidium minutissimum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium minutissimum | | | (Kutzing) Czarnecki | CAD_TWG | UCOB |
| Achnanthidium neomicrocephalum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium neomicrocephalum | | | Lange-Bertalot & Staab | CAD_TWG | CSUSM |
| Achnanthidium pyrenaicum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium pyrenaicum | | | (Hustedt) Kobayasi | CAD_TWG | UCOB |
| Achnanthidium reimeri | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium reimeri | | | (Camburn) Ponander and Potapova | CAD_TWG | EcoAnalysts |
| Achnanthidium rivulare | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium rivulare | | | Potapova & Ponader | CAD_TWG | EcoAnalysts |
| Achnanthidium rosenstockii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium rosenstockii | | | (Lange-Bertalot) Lange-Bertalot | CAD_TWG | CSUSM |
| Achnanthidium sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium sp 1 | | | | CAD_TWG | EcoAnalysts |
| Achnanthidium subatomus | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium subatomus | | | (Hustedt) Lange-Bertalot | CAD_TWG | UCOB |
| Achnanthidium subhudsonis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium subhudsonis | | | (Hustedt) H Kobayasi in Kobayasi et al | CAD_TWG | UCOB |
| Achnanthidium subhudsonis var kraeuselii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium subhudsonis | | Achnanthidium subhudsonis var kraeuselii | (Cholnoky) Cantonati & Lange-Bertalot | CAD_TWG | CSUSM |
| Achnanthidium reimeri | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Achnanthidium | | Achnanthidium reimeri | | | (Camburn) Ponander and Potapova | CAD_TWG | EcoAnalysts |
| Actinocyclus | | Bacillariophyta | | | Coscinodiscophyceae | | | Coscinodiscales | | | Hemidiscaeae | | | | Actinocyclus | | | | | | CAD_TWG | UCOB |
| Actinocyclus normanii | | Bacillariophyta | | | Coscinodiscophyceae | | | Coscinodiscales | | | Hemidiscaeae | | | | Actinocyclus | | Actinocyclus normanii | | | (Gregory) Hustedt | CAD_TWG | UCOB |
| Adlafia | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Adlafia | | | | | Gerd Moser, Lange-Bertalot & Metzeltin 1998 | CAD_TWG | EcoAnalysts |
| Adlafia aquaeductae | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Adlafia | | Adlafia aquaeductae | | | (Krasske) Lange-Bertalot | CAD_TWG | CSUSM |
| Adlafia bryophila | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Adlafia | | Adlafia bryophila | | | (JB Petersen) Moser, Lange-Bertalot & Metzeltin | CAD_TWG | UCOB |
| Adlafia cf bryophila | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Adlafia | | Adlafia cf bryophila | | | (JB Petersen) Moser, Lange-Bertalot & Metzeltin | CAD_TWG | CSUSM |
| Adlafia cf suchlandtii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Adlafia | | Adlafia cf suchlandtii | | | | CAD_TWG | GCSU |
| Adlafia detenta | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Adlafia | | Adlafia detenta | | | (Hustedt) Heudre, C.E.Wetzel & Ector | CAD_TWG | CSUSM |
| Adlafia langebertalotii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Adlafia | | Adlafia langebertalotii | | | Monnier & Ector | CAD_TWG | EcoAnalysts |
| Adlafia minuscula | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Adlafia | | Adlafia minuscula | | | (Grunow) Lange-Bertalot in Lange-Bertalot & Genkal | CAD_TWG | UCOB |
| Adlafia minuscula var muralis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Adlafia | | Adlafia minuscula | | Adlafia minuscula var muralis | (Grunow) Lange-Bertalot in Lange-Bertalot & Genkal | CAD_TWG | UCOB |
| Adlafia suchlandtii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Adlafia | | Adlafia suchlandtii | | | (Hustedt) Moser, Lange-Bertalot & Metzeltin | CAD_TWG | UCOB |
| Amphipleura | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Amphipleura | | | | | | CAD_TWG | UCOB |
| Amphipleura pellucida | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Amphipleura | | Amphipleura pellucida | | | (Kutzing) Kutzing | CAD_TWG | UCOB |
| Amphora | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | | | | | CAD_TWG | UCOB |
| Amphora aequalis | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | Amphora aequalis | | | Krammer | CAD_TWG | NAU |
| Amphora affinis | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | Amphora affinis | | | Kutzing | CAD_TWG | EcoAnalysts |
| Amphora cf inariensis | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | Amphora cf inariensis | | | | CAD_TWG | CSUSM |
| Amphora cf micra | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | Amphora cf micra | | | Levkov | CAD_TWG | CSUSM |
| Amphora copulata | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | Amphora copulata | | | (Kutzing) Schoeman & Archibald | CAD_TWG | UCOB |
| Amphora copulatoides | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | Amphora copulatoides | | | Stepanek et Kociolek | CAD_TWG | CSUSM |
| Amphora inariensis | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | Amphora inariensis | | | Krammer | CAD_TWG | UCOB |
| Amphora indistincta | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | Amphora indistincta | | | Levkov | CAD_TWG | CSUSM |
| Amphora libyca | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | Amphora libyca | | | Ehrenberg | CAD_TWG | UCOB |
| Amphora micra | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | Amphora micra | | | | CAD_TWG | CSUSM |
| Amphora minutissima | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | Amphora minutissima | | | W. Smith | CAD_TWG | UCOB |
| Amphora ovalis | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | Amphora ovalis | | | (Kutzing) Kutzing | CAD_TWG | UCOB |
| Amphora pediculus | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | Amphora pediculus | | | (Kutzing) Grunow in Schmidt et al | CAD_TWG | UCOB |
| Amphora stoermeri | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Amphora | | Amphora stoermerii | | | Edlund & Levkov in Levkov | CAD_TWG | CSUSM |
| Aneumastus | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Mastogloiaceae | | | | Aneumastus | | | | | | CAD_TWG | CSUSM |
| Aneumastus tuscula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Mastogloiaceae | | | | Aneumastus | | Aneumastus tuscula | | | (Ehrenberg) D.G.Mann & A.J.Stickle | CAD_TWG | UCOB |
| Anomoeoneis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Anomoeoneis | | | | | | CAD_TWG | UCOB |
| Anomoeoneis costata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Anomoeoneis | | Anomoeoneis costata | | | (Kutzing) Hustedt | CAD_TWG | UCOB |
| Anomoeoneis sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Anomoeoneis | | Anomoeoneis sp 1 | | | | CAD_TWG | CSUSM |
| Anomoeoneis sphaerophora | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Anomoeoneis | | Anomoeoneis sphaerophora | | | Pfitzer | CAD_TWG | UCOB |
| Anomoeoneis sphaerophora var sculpta | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Anomoeoneis | | Anomoeoneis sphaerophora | | Anomoeoneis sphaerophora var sculpta | (Ehrenberg) Otto Muller | CAD_TWG | UCOB |
| Ardissonea | | Bacillariophyta | | | Meridiophyceae | | | Toxariales | | | Ardissoneaceae | | | | Ardissonea | | | | | | CAD_TWG | UCOB |
| Ardissonea cuneata | | Bacillariophyta | | | Meridiophyceae | | | Toxariales | | | Ardissoneaceae | | | | Ardissonea | | Ardissonea cuneata | | | Mills | CAD_TWG | UCOB |
| Astartiella | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Astartiella | | | | | | CAD_TWG | UCOB |
| Astartiella bahusiensis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Astartiella | | Astartiella bahusiensis | | | (Grunow) Witkowski, Lange-Bertalot & Metzeltin | CAD_TWG | UCOB |
| Astartiella bremeyeri | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Astartiella | | Astartiella bremeyeri | | | (Lange-Bertalot) Witkowski & Lange-Bertalot | CAD_TWG | UCOB |
| Asterionella | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Asterionella | | | | | | CAD_TWG | UCOB |
| Asterionella formosa | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Asterionella | | Asterionella formosa | | | Hassall | CAD_TWG | UCOB |
| Asterionella ralfsii var americana | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Asterionella | | Asterionella ralfsii | | Asterionella ralfsii var americana | | CAD_TWG | EcoAnalysts |
| Aulacodiscus cf nivaloides | | Bacillariophyta | | | Coscinodiscophyceae | | | Coscinodiscales | | | Aulacodiscaceae | | | | Aulacodiscus | | Aulacodiscus cf nivaloides | | | J.Rattray 1888 | CAD_TWG | EcoAnalysts |
| Aulacoseira | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | | | | | CAD_TWG | UCOB |
| Aulacoseira alpigena | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira alpigena | | | (Grunow in Van Heurck) Krammer | CAD_TWG | UCOB |
| Aulacoseira ambigua | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira ambigua | | | (Grunow in Van Heurck) Simonsen | CAD_TWG | UCOB |
| Aulacoseira canadensis | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira canadensis | | | (Hustedt) Simonsen | CAD_TWG | UCOB |
| Aulacoseira cf canadensis | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira cf canadensis | | | (Hustedt) Simonsen | CAD_TWG | CSUSM |
| Aulacoseira cf lacustris | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira cf lacustris | | | (Grunow) Krammer | CAD_TWG | EcoAnalysts |
| Aulacoseira cf lirata | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira cf lirata | | | (Ehrenberg) R. Ross in Hartley | CAD_TWG | CSUSM |
| Aulacoseira crassipunctata | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira crassipunctata | | | Krammer | CAD_TWG | UCOB |
| Aulacoseira crenulata | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira crenulata | | | (Ehrenberg) Thwaites | CAD_TWG | UCOB |
| Aulacoseira distans | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira distans | | | (Ehrenberg) Simonsen | CAD_TWG | UCOB |
| Aulacoseira granulata | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira granulata | | | (Ehrenberg) Simonsen | CAD_TWG | UCOB |
| Aulacoseira granulata var angustissima | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira granulata | | Aulacoseira granulata var angustissima | (Muller) Simonsen | CAD_TWG | UCOB |
| Aulacoseira islandica | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira islandica | | | (Muller) Simonsen | CAD_TWG | NAU |
| Aulacoseira italica | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira italica | | | (Ehrenberg) Simonsen | CAD_TWG | UCOB |
| Aulacoseira italica var tenuissima | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira italica | | Aulacoseira italica var tenuissima | (Grunow in Van Heurck) Simonsen | CAD_TWG | UCOB |
| Aulacoseira lacustris | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira lacustris | | | (Grunow) Krammer | CAD_TWG | CSUSM |
| Aulacoseira lirata | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira lirata | | | (Ehrenberg) R. Ross in Hartley | CAD_TWG | UCOB |
| Aulacoseira muzzanensis | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira muzzanensis | | | (Meister) Krammer | CAD_TWG | EcoAnalysts |
| Aulacoseira nivalis | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira nivalis | | | (W. Smith) English and Potapova 2009 | CAD_TWG | EcoAnalysts |
| Aulacoseira nivaloides | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira nivaloides | | | (Camburn) English & Potapova | CAD_TWG | UCOB |
| Aulacoseira nygaardii | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira nygaardii | | | (Camburn) Camburn & Charles | CAD_TWG | UCOB |
| Aulacoseira pusilla | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira pusilla | | | (Meister) A. Tuji & A. Houki | CAD_TWG | UCOB |
| Aulacoseira sp 1 | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira sp 1 | | | | CAD_TWG | EcoAnalysts |
| Aulacoseira sp 2 | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira sp 2 | | | | CAD_TWG | EcoAnalysts |
| Aulacoseira spathulata | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira spathulata | | | | CAD_TWG | CSUSM |
| Aulacoseira subarctica | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira subarctica | | | (Muller) Haworth | CAD_TWG | UCOB |
| Aulacoseira tenella | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira tenella | | | (Nygaard) Simonsen | CAD_TWG | EcoAnalysts |
| Aulacoseira tethera | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira tethera | | | Haworth | CAD_TWG | UCOB |
| Aulacoseira valida | | Bacillariophyta | | | Coscinodiscophyceae | | | Aulacoseirales | | | Aulacoseiraceae | | | | Aulacoseira | | Aulacoseira valida | | | (Grunow in Van Heurck) Krammer | CAD_TWG | UCOB |
| Bacillaria | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Bacillaria | | | | | | CAD_TWG | UCOB |
| Bacillaria paxillifera | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Bacillaria | | Bacillaria paxillifera | | | (O.F.Muller) T.Marsson | CAD_TWG | Phycotech |
| Bacillariaceae | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | | | | | | | CAD_TWG | UCOB |
| Bacillariophyceae | | Bacillariophyta | | | Bacillariophyceae | | | | | | | | | | | | | | | | CAD_TWG | UCOB |
| Bacillariophyceae 1 | | Bacillariophyta | | | Bacillariophyceae | | | | | | | | | | | | | | | | CAD_TWG | EcoAnalysts |
| Bacillariophyceae 10 | | Bacillariophyta | | | Bacillariophyceae | | | | | | | | | | | | | | | | CAD_TWG | EcoAnalysts |
| Bacillariophyceae 11 | | Bacillariophyta | | | Bacillariophyceae | | | | | | | | | | | | | | | | CAD_TWG | EcoAnalysts |
| Bacillariophyceae 2 | | Bacillariophyta | | | Bacillariophyceae | | | | | | | | | | | | | | | | CAD_TWG | EcoAnalysts |
| Bacillariophyceae 3 | | Bacillariophyta | | | Bacillariophyceae | | | | | | | | | | | | | | | | CAD_TWG | EcoAnalysts |
| Bacillariophyceae 4 | | Bacillariophyta | | | Bacillariophyceae | | | | | | | | | | | | | | | | CAD_TWG | EcoAnalysts |
| Bacillariophyceae 5 | | Bacillariophyta | | | Bacillariophyceae | | | | | | | | | | | | | | | | CAD_TWG | EcoAnalysts |
| Bacillariophyceae 6 | | Bacillariophyta | | | Bacillariophyceae | | | | | | | | | | | | | | | | CAD_TWG | EcoAnalysts |
| Bacillariophyceae 7 | | Bacillariophyta | | | Bacillariophyceae | | | | | | | | | | | | | | | | CAD_TWG | EcoAnalysts |
| Bacillariophyceae 8 | | Bacillariophyta | | | Bacillariophyceae | | | | | | | | | | | | | | | | CAD_TWG | EcoAnalysts |
| Bacillariophyceae 9 | | Bacillariophyta | | | Bacillariophyceae | | | | | | | | | | | | | | | | CAD_TWG | EcoAnalysts |
| Belonastrum berolinense | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Belonastrum | | Belonastrum berolinense | | | (Lemmermann) Round & Maidana | CAD_TWG | CSUSM |
| Berkeleya | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Berkeleyaceae | | | | Berkeleya | | | | | | CAD_TWG | UCOB |
| Berkeleya rutilans | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Berkeleyaceae | | | | Berkeleya | | Berkeleya rutilans | | | (Trentepohl ex Roth) Grunow | CAD_TWG | NAU |
| Biremis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Scoliotropidaceae | | | | Biremis | | | | | | CAD_TWG | UCOB |
| Biremis circumtexta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Scoliotropidaceae | | | | Biremis | | Biremis circumtexta | | | (Meister ex Hustedt) Lange-Bertalot & A.Witkowski | CAD_TWG | UCOB |
| Brachysira | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Brachysira | | | | | | CAD_TWG | UCOB |
| Brachysira aponina | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Brachysira | | Brachysira aponina | | | Kutzing | CAD_TWG | UCOB |
| Brachysira brebissonii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Brachysira | | Brachysira brebissonii | | | R Ross in Hartley | CAD_TWG | UCOB |
| Brachysira exilis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Brachysira | | Brachysira exilis | | | (Kutzing) Round & Mann | CAD_TWG | UCOB |
| Brachysira intermedia | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Brachysira | | Brachysira intermedia | | | (Ostrup) Lange-Bertalot | CAD_TWG | CSUSM |
| Brachysira microcephala | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Brachysira | | Brachysira microcephala | | | (Kutzing) Compere | CAD_TWG | EcoAnalysts |
| Brachysira neglectissima | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Brachysira | | Brachysira neglectissima | | | | CAD_TWG | CSUSM |
| Brachysira neoexilis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Brachysira | | Brachysira neoexilis | | | Lange-Bertalot in Lange-Bertalot & Moser | CAD_TWG | UCOB |
| Brachysira ocalanensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Brachysira | | Brachysira ocalanensis | | | Shayler and Siver | CAD_TWG | EcoAnalysts |
| Brachysira styriaca | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Brachysira | | Brachysira styriaca | | | (Grunow in Van Heurck) Ross in Hartley | CAD_TWG | UCOB |
| Brachysira vitrea | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Brachysira | | Brachysira vitrea | | | (Grunow) R Ross in Hartley | CAD_TWG | UCOB |
| Brachysira zellensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Brachysira | | Brachysira zellensis | | | (Grunow) Round & Mann | CAD_TWG | UCOB |
| Caloneis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | | | | | CAD_TWG | UCOB |
| Caloneis alpestris | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis alpestris | | | (Grunow) Cleve | CAD_TWG | UCOB |
| Caloneis amphisbaena | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis amphisbaena | | | (Bory) Cleve | CAD_TWG | UCOB |
| Caloneis bacillum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis bacillum | | | (Grunow) Cleve | CAD_TWG | UCOB |
| Caloneis branderii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis branderii | | | (Hustedt) Krammer in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Caloneis budensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis budensis | | | (Grunow) Krammer | CAD_TWG | EcoAnalysts |
| Caloneis cf bacillum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis cf bacillum | | | (Grunow) Cleve | CAD_TWG | CSUSM |
| Caloneis cf silicula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis cf silicula | | | (Ehrenberg) Cleve | CAD_TWG | CSUSM |
| Caloneis clevei | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis clevei | | | (Lagerstedt) Cleve | CAD_TWG | UCOB |
| Caloneis dubia | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis dubia | | | Krammer | CAD_TWG | CSUSM |
| Caloneis falcifera | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis falcifera | | | Lange-Bertalot, Genkal & Vekhov | CAD_TWG | CSUSM |
| Caloneis fontinalis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis fontinalis | | | (Grunow) Cleve-Euler | CAD_TWG | CSUSM |
| Caloneis hyalina | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis hyalina | | | Hustedt | CAD_TWG | UCOB |
| Caloneis lancettula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis lancettula | | | (Schulz) Lange-Bert. et Witkowski | CAD_TWG | CSUSM |
| Caloneis latiuscula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis latiuscula | | | | CAD_TWG | EcoAnalysts |
| Caloneis lauta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis lauta | | | Carter & Bailey-Watts | CAD_TWG | UCOB |
| Caloneis leptosoma | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis leptosoma | | | (Grunow) Krammer | CAD_TWG | CSUSM |
| Caloneis lewisii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis lewisii | | | Patrick | CAD_TWG | EcoAnalysts |
| Caloneis limosa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis limosa | | | (Kutzing) R.M.Patrick | CAD_TWG | CSUSM |
| Caloneis molaris | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis molaris | | | (Grunow) Krammer in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Caloneis permagna | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis permagna | | | (Bailey) Cleve | CAD_TWG | EcoAnalysts |
| Caloneis schumanniana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis schumanniana | | | (Grunow in Van Heurck) Cleve | CAD_TWG | UCOB |
| Caloneis silicula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis silicula | | | (Ehrenberg) Cleve | CAD_TWG | UCOB |
| Caloneis sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis sp 1 | | | | CAD_TWG | CSUSM |
| Caloneis sp 4 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis sp 4 | | | | CAD_TWG | CSUSM |
| Caloneis sp 5 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis sp 5 | | | | CAD_TWG | CSUSM |
| Caloneis tenuis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis tenuis | | | (Gregory) Krammer in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Caloneis thermalis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis thermalis | | | (Gregory) Krammer in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Caloneis undulata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis undulata | | | (Gregory) Krammer in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Caloneis vasileyevae | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis vasileyevae | | | Lange-Bertalot, Genkal & Vekhov 2004 | CAD_TWG | EcoAnalysts |
| Caloneis westii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Caloneis | | Caloneis westii | | | (W. Smith) Hendey | CAD_TWG | EcoAnalysts |
| Campylodiscus | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Campylodiscus | | | | | | CAD_TWG | UCOB |
| Campylodiscus clypeus | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Campylodiscus | | Campylodiscus clypeus | | | Ehrenberg | CAD_TWG | UCOB |
| Capartogramma | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Capartogramma | | | | | | CAD_TWG | CSUSM |
| Capartogramma crucicula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Capartogramma | | Capartogramma crucicula | | | (Grunow ex Cleve) Ross | CAD_TWG | UCOB |
| Catacombas gaillonii | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Catacombas | | Catacombas gaillonii | | | (Bory) D.M.Williams & Round | CAD_TWG | CSUSM |
| Cavinula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Cavinulaceae | | | | Cavinula | | | | | | CAD_TWG | UCOB |
| Cavinula cf jaernefeltii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Cavinulaceae | | | | Cavinula | | Cavinula cf jaernefeltii | | | (Hustedt) Mann & Stickle in Round, Crawford & Mann | CAD_TWG | CSUSM |
| Cavinula cocconeiformis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Cavinulaceae | | | | Cavinula | | Cavinula cocconeiformis | | | (W.Gregory ex Greville) D.G.Mann & A.J.Stickle | CAD_TWG | UCOB |
| Cavinula jaernefeltii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Cavinulaceae | | | | Cavinula | | Cavinula jaernefeltii | | | (Hustedt) Mann & Stickle in Round, Crawford & Mann | CAD_TWG | UCOB |
| Cavinula lapidosa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Cavinulaceae | | | | Cavinula | | Cavinula lapidosa | | | (Krasske) Lange-Bertalot | CAD_TWG | UCOB |
| Cavinula pseudoscutiformis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Cavinulaceae | | | | Cavinula | | Cavinula pseudoscutiformis | | | (Hustedt) D.G.Mann & A.J.Stickle | CAD_TWG | UCOB |
| Cavinula scutelloides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Cavinulaceae | | | | Cavinula | | Cavinula scutelloides | | | (W.Smith) Lange-Bertalot | CAD_TWG | UCOB |
| Cavinula variostriata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Cavinulaceae | | | | Cavinula | | Cavinula variostriata | | | (Krasske) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Cavinula vincentii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Cavinulaceae | | | | Cavinula | | Cavinula vincentii | | | Antoniades & Hamilton | CAD_TWG | UCOB |
| Chaetoceros | | Bacillariophyta | | | Mediophyceae | | | Chaetocerotales | | | Chaetocerotaceae | | | | Chaetoceros | | | | | Ehrenberg, 1844 | CAD_TWG | EcoAnalysts |
| Chamaepinnularia | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Chamaepinnularia | | | | | | CAD_TWG | UCOB |
| Chamaepinnularia begeri | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Chamaepinnularia | | Chamaepinnularia begeri | | | (Krasske)Lange-BertalotinLange-Bertalot&Metzeltin | CAD_TWG | UCOB |
| Chamaepinnularia bremensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Chamaepinnularia | | Chamaepinnularia bremensis | | | (Hustedt) Lange-Bertalot | CAD_TWG | UCOB |
| Chamaepinnularia cf evanida | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Chamaepinnularia | | Chamaepinnularia cf evanida | | | | CAD_TWG | CSUSM |
| Chamaepinnularia evanida | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Chamaepinnularia | | Chamaepinnularia evanida | | | (Hustedt) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Chamaepinnularia hassiaca | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Chamaepinnularia | | Chamaepinnularia hassiaca | | | (Krasske) Cantonati & Lange-Bertalot | CAD_TWG | CSUSM |
| Chamaepinnularia mediocris | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Chamaepinnularia | | Chamaepinnularia mediocris | | | (Krasske) Lange-Bertalot & Krammer | CAD_TWG | UCOB |
| Chamaepinnularia muscicola | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Chamaepinnularia | | Chamaepinnularia muscicola | | | (J.B.Petersen) Kulikovskiy, Lange-Bertalot & A.Witowski | CAD_TWG | CSUSM |
| Chamaepinnularia obsoleta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Chamaepinnularia | | Chamaepinnularia obsoleta | | | (Hustedt) C.E.Wetzel & Ector | CAD_TWG | CSUSM |
| Chamaepinnularia soehrensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Chamaepinnularia | | Chamaepinnularia soehrensis | | | (Krasske) Lange-Bertalot et Krammer | CAD_TWG | EcoAnalysts |
| Chamaepinnularia sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Chamaepinnularia | | Chamaepinnularia sp 1 | | | (Krasske) Lange-Bertalot in Gerd Moser, Lange-Bertalot & Metzeltin 1998 | CAD_TWG | EcoAnalysts |
| Chamaepinnularia submuscicola | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Chamaepinnularia | | Chamaepinnularia submuscicola | | | (Krasske) Lange-Bertalot | CAD_TWG | CSUSM |
| Cocconeis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | | | | | CAD_TWG | UCOB |
| Cocconeis cascadensis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis cascadensis | | | Stancheva | CAD_TWG | CSUSM |
| Cocconeis cf cascadensis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis cf cascadesnsis | | | Stancheva | CAD_TWG | CSUSM |
| Cocconeis cf disculus | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis cf disculus | | | (Schumann) Cleve | CAD_TWG | CSUSM |
| Cocconeis cf lineata | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis cf lineata | | | | CAD_TWG | CSUSM |
| Cocconeis cf placentula | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis cf placentula | | | | CAD_TWG | CSUSM |
| Cocconeis cf pseudolineata | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis cf pseudolineata | | | | CAD_TWG | CSUSM |
| Cocconeis cf scutellum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis cf scutellum | | | Ehrenberg | CAD_TWG | CSUSM |
| Cocconeis coreana | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis coreana | | | R.Jahn & B.M.Suh | CAD_TWG | CSUSM |
| Cocconeis czarneckii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis czarneckii | | | Stancheva, L. D. Mora & R. Jahn | CAD_TWG | CSUSM |
| Cocconeis disculus | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis disculus | | | (Schumann) Cleve | CAD_TWG | UCOB |
| Cocconeis ectorii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis ectorii | | | L.D.Mora, Stancheva & R.Jahn | CAD_TWG | SCCWRP |
| Cocconeis fetscheriana | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis fetscheriana | | | Stancheva | CAD_TWG | GCSU |
| Cocconeis fluviatilis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis fluviatilis | | | Wallace | CAD_TWG | UCOB |
| Cocconeis klamathensis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis klamathensis | | | Sovereign | CAD_TWG | CSUSM |
| Cocconeis lineata | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis lineata | | | Ehrenberg | CAD_TWG | CSUSM |
| Cocconeis neodiminuta | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis neodiminuta | | | Krammer | CAD_TWG | UCOB |
| Cocconeis neothumensis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis neothumensis | | | Krammer | CAD_TWG | UCOB |
| Cocconeis pediculus | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis pediculus | | | Ehrenberg | CAD_TWG | UCOB |
| Cocconeis placentula | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis placentula | | | Ehrenberg | CAD_TWG | UCOB |
| Cocconeis placentula cf var euglypta | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis placentula | | Cocconeis placentula cf var euglypta | (Ehrenberg) Grunow | CAD_TWG | CSUSM |
| Cocconeis placentula complex | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | Cocconeis placentula complex | | | | | CAD_TWG | GCSU |
| Cocconeis placentula var euglypta | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis placentula | | Cocconeis placentula var euglypta | (Ehrenberg) Grunow | CAD_TWG | UCOB |
| Cocconeis placentula var klinoraphis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis placentula | | Cocconeis placentula var klinoraphis | | CAD_TWG | CSUSM |
| Cocconeis pseudolineata | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis pseudolineata | | | (Geitler) Lange-Bertalot in Werum & Lange-Bertalot | CAD_TWG | UCOB |
| Cocconeis pseudothumensis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis pseudothumensis | | | Reichardt | CAD_TWG | UCOB |
| Cocconeis rugosa | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis rugosa | | | Sovereign | CAD_TWG | CSUSM |
| Cocconeis scutellum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis scutellum | | | Ehrenberg | CAD_TWG | UCOB |
| Cocconeis sp 1 CAL | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis sp 1 CAL | | | | CAD_TWG | UCOB |
| Cocconeis sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis sp 2 | | | | CAD_TWG | CSUSM |
| Cocconeis sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis sp 3 | | | | CAD_TWG | CSUSM |
| Cocconeis sp 4 | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis sp 4 | | | | CAD_TWG | CSUSM |
| Cocconeis sp 5 | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis sp 5 | | | | CAD_TWG | CSUSM |
| Cocconeis sp 6 | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Cocconeidaceae | | | | Cocconeis | | Cocconeis sp 6 | | | | CAD_TWG | CSUSM |
| Coscinodiscophyceae | | Bacillariophyta | | | Coscinodiscophyceae | | | | | | | | | | | | | | | | CAD_TWG | UCOB |
| Coscinodiscophyceae 1 | | Bacillariophyta | | | Coscinodiscophyceae | | | | | | | | | | | | | | | | CAD_TWG | EcoAnalysts |
| Coscinodiscus | | Bacillariophyta | | | Coscinodiscophyceae | | | Coscinodiscales | | | Coscinodiscaceae | | | | Coscinodiscus | | | | | | CAD_TWG | UCOB |
| Cosmioneis brasiliana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Cosmioneidaceae | | | | Cosmioneis | | Cosmioneis brasiliana | | | (Cleve) C.E.Wetzel & Ector | CAD_TWG | CSUSM |
| Cosmioneis pusilla | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Cosmioneidaceae | | | | Cosmioneis | | Cosmioneis pusilla | | | (W.Smith) D.G.Mann & A.J.Stickle | CAD_TWG | NAU |
| Cosmioneis reimeri | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Cosmioneidaceae | | | | Cosmioneis | | Cosmioneis reimeri | | | R.L.Lowe & A.R.Sherwood | CAD_TWG | CSUSM |
| Craticula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | | | | | CAD_TWG | UCOB |
| Craticula accomoda | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula accomoda | | | (Hustedt) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Craticula acidoclinata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula acidoclinata | | | Lange-Bertalot & Metzeltin | CAD_TWG | EcoAnalysts |
| Craticula ambigua | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula ambigua | | | (Ehrenberg) Mann | CAD_TWG | EcoAnalysts |
| Craticula buderi | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula buderi | | | (Hustedt) Lange-Bertalot | CAD_TWG | UCOB |
| Craticula cf buderi | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula cf buderi | | | (Hustedt) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Craticula cf halophila | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula cf halophila | | | (Grunow) D.G.Mann | CAD_TWG | EcoAnalysts |
| Craticula citrus | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula citrus | | | | CAD_TWG | EcoAnalysts |
| Craticula cuspidata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula cuspidata | | | (Kutzing) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Craticula halophila | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula halophila | | | (Grunow) D.G.Mann | CAD_TWG | UCOB |
| Craticula halophilioides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula halophilioides | | | (Hustedt) Lange-Bertalot | CAD_TWG | UCOB |
| Craticula minusculoides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula minusculoides | | | (Hustedt) Lange-Bertalot | CAD_TWG | UCOB |
| Craticula molestiformis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula molestiformis | | | (Hustedt) Mayama | CAD_TWG | UCOB |
| Craticula sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula sp 1 | | | | CAD_TWG | EcoAnalysts |
| Craticula subminuscula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula subminuscula | | | (Manguin) C.E.Wetzel & Ector | CAD_TWG | Phycotech |
| Craticula submolesta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Craticula | | Craticula submolesta | | | (Hustedt) Lange-Bertalot | CAD_TWG | UCOB |
| Ctenophora | | Bacillariophyta | | | Bacillariophyceae | | | Licmohorales | | | Ulnariaceae | | | | Ctenophora | | | | | | CAD_TWG | UCOB |
| Ctenophora pulchella | | Bacillariophyta | | | Bacillariophyceae | | | Licmohorales | | | Ulnariaceae | | | | Ctenophora | | Ctenophora pulchella | | | (Ralfs ex Kutzing) Williams & Round | CAD_TWG | UCOB |
| Cyclostephanos | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclostephanos | | | | | | CAD_TWG | UCOB |
| Cyclostephanos costatilimbus | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclostephanos | | Cyclostephanos costatilimbus | | | (Hiromu Kobayasi & Hideaki Kobayashi) Stoermer, H.Håkansson & E.C.Theriot | CAD_TWG | UCOB |
| Cyclostephanos damasii | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclostephanos | | Cyclostephanos damasii | | | (Hustedt) Stoermer and Hakansson | CAD_TWG | EcoAnalysts |
| Cyclostephanos dubius | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclostephanos | | Cyclostephanos dubius | | | (Fricke) Round | CAD_TWG | UCOB |
| Cyclostephanos invisitatus | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclostephanos | | Cyclostephanos invisitatus | | | (Hohn & Hellerman) Theriot, Stoermer & Håkansson | CAD_TWG | UCOB |
| Cyclostephanos sp A | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclostephanos | | Cyclostephanos sp A | | | | CAD_TWG | UCOB |
| Cyclostephanos tholiformis | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclostephanos | | Cyclostephanos tholiformis | | | Stoermer, Hakansson & Theriot | CAD_TWG | UCOB |
| Cyclotella | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclotella | | | | | | CAD_TWG | UCOB |
| Cyclotella atomus | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclotella | | Cyclotella atomus | | | Hustedt | CAD_TWG | UCOB |
| Cyclotella bodanica f lemanica | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclotella | | Cyclotella bodanica | | Cyclotella bodanica f lemanica | (Otto Muller in Schroter) Bachmann | CAD_TWG | UCOB |
| Cyclotella choctawhatcheeana | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclotella | | Cyclotella choctawhatcheeana | | | Prasad | CAD_TWG | CSUSM |
| Cyclotella costei | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclotella | | Cyclotella costei | | | | CAD_TWG | EcoAnalysts |
| Cyclotella cyclopuncta | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclotella | | Cyclotella cyclopuncta | | | | CAD_TWG | EcoAnalysts |
| Cyclotella distinguenda | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclotella | | Cyclotella distinguenda | | | (Agardh) Kutzing | CAD_TWG | UCOB |
| Cyclotella gamma | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclotella | | Cyclotella gamma | | | Sovereign | CAD_TWG | UCOB |
| Cyclotella meneghiniana | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclotella | | Cyclotella meneghiniana | | | Kutzing | CAD_TWG | UCOB |
| Cyclotella sp 1 | | Heterokontophyta | | | Coscinodiscophyceae | | | Thalassiosirales | | | Stephanodiscaeae | | | | Cyclotella | | Cyclotella sp 1 | | | | CAD_TWG | EcoAnalysts |
| Cyclotella sp 2 | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclotella | | Cyclotella sp 2 | | | | CAD_TWG | CSUSM |
| Cyclotella sp 3 | | Bacillariophyta | | | Meridiophyceae | | | Thalassiosirales | | | Stephanodiscaceae | | | | Cyclotella | | Cyclotella sp 3 | | | | CAD_TWG | EcoAnalysts |
| Cylindrotheca | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Cylindrotheca | | | | | | CAD_TWG | UCOB |
| Cylindrotheca closterium | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Cylindrotheca | | Cylindrotheca closterium | | | (Ehrenberg) Reimann & J.C.Lewin | CAD_TWG | CSUSM |
| Cylindrotheca gracilis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Cylindrotheca | | Cylindrotheca gracilis | | | (Brebisson in Kutzing) Grunow in Van Heurck | CAD_TWG | UCOB |
| Cymatopleura | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Cymatopleura | | | | | | CAD_TWG | UCOB |
| Cymatopleura apiculata | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Cymatopleura | | Cymatopleura apiculata | | | W.Smith | CAD_TWG | CSUSM |
| Cymatopleura elliptica | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Cymatopleura | | Cymatopleura elliptica | | | (Brebisson ex Kutzing) W Smith | CAD_TWG | UCOB |
| Cymatopleura solea | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Cymatopleura | | Cymatopleura solea | | | (Brebisson in Brebisson & Godey) W Smith | CAD_TWG | UCOB |
| Cymbella | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | | | | | CAD_TWG | UCOB |
| Cymbella affiniformis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella affiniformis | | | Krammer | CAD_TWG | EcoAnalysts |
| Cymbella affinis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella affinis | | | Kutzing | CAD_TWG | UCOB |
| Cymbella aspera | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella aspera | | | (Ehrenberg) Cleve | CAD_TWG | UCOB |
| Cymbella austriaca var erdobenyiana | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella austriaca | | Cymbella austriaca var erdobenyiana | (Pantocsek) Krammer in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Cymbella cappi | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella cappi | | | Kutzing | CAD_TWG | CSUSM |
| Cymbella cistula | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella cistula | | | (Hemprich in Hemprich & Ehrenberg) Kirchner | CAD_TWG | UCOB |
| Cymbella cymbiformis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella cymbiformis | | | Agardh | CAD_TWG | UCOB |
| Cymbella cymbiformis var nonpunctata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella cymbiformis | | Cymbella cymbiformis var nonpunctata | Fontell | CAD_TWG | UCOB |
| Cymbella dorsenotata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella dorsenotata | | | Ostrup | CAD_TWG | EcoAnalysts |
| Cymbella fontinalis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella fontinalis | | | Bahls | CAD_TWG | CSUSM |
| Cymbella helmckei | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella helmckei | | | Krammer | CAD_TWG | UCOB |
| Cymbella helvetica | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella helvetica | | | Kutzing | CAD_TWG | UCOB |
| Cymbella heteropleura | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella heteropleura | | | (Ehrenberg) Kutzing | CAD_TWG | UCOB |
| Cymbella hungarica | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella hungarica | | | (Grunow in Schmidt et al) Pantocsek | CAD_TWG | UCOB |
| Cymbella hustedtii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella hustedtii | | | Krasske | CAD_TWG | UCOB |
| Cymbella janischii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella janischii | | | (Schmidt in Schmidt et al) Cleve | CAD_TWG | UCOB |
| Cymbella kappii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella kappii | | | (Cholnoky) Cholnoky | CAD_TWG | CSUSM |
| Cymbella kolbei | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella kolbei | | | Hust. | CAD_TWG | CSUSM |
| Cymbella laevis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella laevis | | | Nageli in Kutzing | CAD_TWG | UCOB |
| Cymbella lanceolata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella lanceolata | | | (C. Agardh) C. Agardh | CAD_TWG | UCOB |
| Cymbella maggiana | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella maggiana | | | Krammer 2002 | CAD_TWG | EcoAnalysts |
| Cymbella mexicana | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella mexicana | | | (Ehrenberg) Cleve | CAD_TWG | UCOB |
| Cymbella mexicana var camchatka | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella mexicana | | Cymbella mexicana var camchatka | (Grunow) Krammer | CAD_TWG | CSUSM |
| Cymbella neocistula | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella neocistula | | | Krammer | CAD_TWG | EcoAnalysts |
| Cymbella neoleptoceros | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella neoleptoceros | | | Krammer | CAD_TWG | CSUSM |
| Cymbella parva | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella parva | | | (W. Smith) Kirchner | CAD_TWG | EcoAnalysts |
| Cymbella proxima | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella proxima | | | Reimer in Patrick & Reimer | CAD_TWG | UCOB |
| Cymbella sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella sp 1 | | | | CAD_TWG | EcoAnalysts |
| Cymbella subcistula | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella subcistula | | | Krammer | CAD_TWG | EcoAnalysts |
| Cymbella subhelvetica | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella subhelvetica | | | Krammer | CAD_TWG | CSUSM |
| Cymbella subleptoceros | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella subleptoceros | | | Krammer | CAD_TWG | CSUSM |
| Cymbella subturgidula | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella subturgidula | | | Krammer | CAD_TWG | EcoAnalysts |
| Cymbella sumatrensis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella sumatrensis | | | Hustedt | CAD_TWG | EcoAnalysts |
| Cymbella tropica | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella tropica | | | Krammer | CAD_TWG | CSUSM |
| Cymbella tumida | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella tumida | | | (Brebisson ex Kutzing) Van Heurck | CAD_TWG | UCOB |
| Cymbella tumidula | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella tumidula | | | Grunow in Schmidt et al | CAD_TWG | UCOB |
| Cymbella turgidula | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella turgidula | | | Grunow in Schmidt et al | CAD_TWG | UCOB |
| Cymbella vulgata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbella | | Cymbella vulgata | | | Krammer | CAD_TWG | EcoAnalysts |
| Cymbellaceae | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | | | | | | | CAD_TWG | UCOB |
| Cymbellafalsa | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbellafalsa | | | | | | CAD_TWG | CSUSM |
| Cymbellafalsa diluviana | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbellafalsa | | Cymbellafalsa diluviana | | | (Krasske) Lange-Bertalot & Metzeltin | CAD_TWG | UCOB |
| Cymbellales | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | | | | | | | | | | D.G.Mann in Round, Crawford, & Mann, 1990 | CAD_TWG | EcoAnalysts |
| Cymbellonitzschia | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Cymbellonitzschia | | | | | | CAD_TWG | CSUSM |
| Cymbellonitzschia diluviana | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Cymbellonitzschia | | Cymbellonitzschia diluviana | | | Hustedt | CAD_TWG | UCOB |
| Cymbopleura | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | | | | | CAD_TWG | CSUSM |
| Cymbopleura amphicephala | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura amphicephala | | | (Naegeli) Krammer | CAD_TWG | UCOB |
| Cymbopleura budayana | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura budayana | | | (Pantocsek) Krammer | CAD_TWG | UCOB |
| Cymbopleura cf apiculata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura cf apiculata | | | Krammer | CAD_TWG | EcoAnalysts |
| Cymbopleura cf lata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura cf lata | | | (Grunow) Krammer | CAD_TWG | EcoAnalysts |
| Cymbopleura citrus | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura citrus | | | (Carter & Bailey-Watts) Krammer | CAD_TWG | UCOB |
| Cymbopleura crassipunctata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura crassipunctata | | | Krammer | CAD_TWG | CSUSM |
| Cymbopleura cuspidata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura cuspidata | | | (Kutzing) Krammer | CAD_TWG | UCOB |
| Cymbopleura hauckii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura hauckii | | | (Van Heurck) Krammer | CAD_TWG | UCOB |
| Cymbopleura hybrida | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura hybrida | | | (Grunow) Krammer | CAD_TWG | UCOB |
| Cymbopleura inaequalis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura inaequalis | | | (Ehrenberg) Krammer | CAD_TWG | UCOB |
| Cymbopleura incerta | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura incerta | | | (Grunow) Krammer | CAD_TWG | UCOB |
| Cymbopleura laeviformis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura laeviformis | | | Krammer | CAD_TWG | UCOB |
| Cymbopleura lapponica | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura lapponica | | | (Grunow) Krammer | CAD_TWG | UCOB |
| Cymbopleura lata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura lata | | | (Grunow ex Cleve) Krammer | CAD_TWG | CSUSM |
| Cymbopleura naviculiformis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura naviculiformis | | | (Auerswald ex Heiberg) Krammer | CAD_TWG | UCOB |
| Cymbopleura sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura sp 1 | | | | CAD_TWG | EcoAnalysts |
| Cymbopleura subaequalis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura subaequalis | | | (Grunow) Krammer | CAD_TWG | NAU |
| Cymbopleura subcuspidata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Cymbopleura | | Cymbopleura subcuspidata | | | (Krammer) Krammer | CAD_TWG | UCOB |
| Delicata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Delicata | | | | | | CAD_TWG | UCOB |
| Delicatophycus delicatulus | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Delicatophycus | | Delicatophycus delicatulus | | | (Kutzing) M.J.Wynne | CAD_TWG | CSUSM |
| Denticula | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Denticula | | | | | | CAD_TWG | UCOB |
| Denticula cf valida | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Denticula | | Denticula cf valida | | | (Pedicino) Grunow in Van Heurck | CAD_TWG | CSUSM |
| Denticula creticola | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Denticula | | Denticula creticola | | | (Ostrup) Lange-Bertalot & Krammer | CAD_TWG | CSUSM |
| Denticula elegans | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Denticula | | Denticula elegans | | | Kutzing | CAD_TWG | UCOB |
| Denticula kuetzingii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Denticula | | Denticula kuetzingii | | | Grunow | CAD_TWG | UCOB |
| Denticula subtilis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Denticula | | Denticula subtilis | | | Grunow | CAD_TWG | UCOB |
| Denticula tenuis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Denticula | | Denticula tenuis | | | Kutzing | CAD_TWG | UCOB |
| Denticula thermalis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Denticula | | Denticula thermalis | | | Kutzing | CAD_TWG | UCOB |
| Denticula valida | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Denticula | | Denticula valida | | | (Pedicino) Grunow in Van Heurck | CAD_TWG | UCOB |
| Diadesmis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Diadesmis | | | | | | CAD_TWG | UCOB |
| Diadesmis confervacea | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Diadesmis | | Diadesmis confervacea | | | Kutzing | CAD_TWG | UCOB |
| Diadesmis sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Diadesmis | | Diadesmis sp 1 | | | | CAD_TWG | CSUSM |
| Diatoma | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Diatoma | | | | | | CAD_TWG | UCOB |
| Diatoma anceps var linearis | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Diatoma | | Diatoma anceps | | Diatoma anceps var linearis | M Peragallo in Tempere & Peragallo | CAD_TWG | UCOB |
| Diatoma cf tenuis | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Diatoma | | Diatoma cf tenuis | | | C.Agardh | CAD_TWG | CSUSM |
| Diatoma ehrenbergii | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Diatoma | | Diatoma ehrenbergii | | | Kutzing | CAD_TWG | UCOB |
| Diatoma elongata | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Diatoma | | Diatoma elongata | | | (Lyngbye) C.Agardh | CAD_TWG | CSUSM |
| Diatoma problematica | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Diatoma | | Diatoma problematica | | | Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Diatoma tenuis | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Diatoma | | Diatoma tenuis | | | Agardh | CAD_TWG | UCOB |
| Diatoma vulgaris | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Diatoma | | Diatoma vulgaris | | | Bory | CAD_TWG | UCOB |
| Diatoma vulgaris var linearis | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Diatoma | | Diatoma vulgaris | | Diatoma vulgaris var linearis | Grunow in Van Heurck | CAD_TWG | UCOB |
| Diatomella | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Diatomella | | | | | | CAD_TWG | UCOB |
| Diatomella balfouriana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Diatomella | | Diatomella balfouriana | | | Greville | CAD_TWG | UCOB |
| Didymosphenia | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Didymosphenia | | | | | | CAD_TWG | CSUSM |
| Didymosphenia geminata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Didymosphenia | | Didymosphenia geminata | | | (Lyngbye) M Schmidt in Schmidt et al | CAD_TWG | UCOB |
| Diploneis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | | | | | CAD_TWG | UCOB |
| Diploneis aestuari | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis aestuari | | | Hustedt | CAD_TWG | UCOB |
| Diploneis calcilacustris | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis calcilacustris | | | | CAD_TWG | EcoAnalysts |
| Diploneis cf elliptica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis cf elliptica | | | (Kutzing) Cleve | CAD_TWG | EcoAnalysts |
| Diploneis cf puella | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis cf puella | | | (Schumann) Cleve | CAD_TWG | CSUSM |
| Diploneis elliptica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis elliptica | | | (Kutzing) Cleve | CAD_TWG | UCOB |
| Diploneis finnica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis finnica | | | (Ehrenberg) Cleve | CAD_TWG | UCOB |
| Diploneis fontanella | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidacceae | | | | Diploneis | | Diploneis fontanella | | | Lange-Bertalot | CAD_TWG | CSUSM |
| Diploneis hinziae | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis hinziae | | | Lange-Bertalot & Fuhrmann | CAD_TWG | CSUSM |
| Diploneis interrupta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis interrupta | | | (Kutzing) Cleve | CAD_TWG | UCOB |
| Diploneis krammeri | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis krammeri | | | | CAD_TWG | CSUSM |
| Diploneis marginestriata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis marginestriata | | | Hustedt | CAD_TWG | UCOB |
| Diploneis modica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis modica | | | Hustedt | CAD_TWG | UCOB |
| Diploneis oblongella | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis oblongella | | | (Naegeli in Kutzing) Cleve-Euler in Cleve-Euler | CAD_TWG | UCOB |
| Diploneis oculata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis oculata | | | (Brebisson in Desmazieres) Cleve | CAD_TWG | UCOB |
| Diploneis ovalis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis ovalis | | | (Hilse in Rabenhorst) Cleve | CAD_TWG | UCOB |
| Diploneis parma | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis parma | | | Cleve | CAD_TWG | UCOB |
| Diploneis praetermissa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis praetermissa | | | Lange-Bertalot & A.Fuhrmann | CAD_TWG | CSUSM |
| Diploneis pseudovalis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis pseudovalis | | | Hustedt | CAD_TWG | UCOB |
| Diploneis puella | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis puella | | | (Schumann) Cleve | CAD_TWG | UCOB |
| Diploneis separanda | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis separanda | | | Lange-Bertalot in Werum & Lange-Bertalot | CAD_TWG | UCOB |
| Diploneis smithii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis smithii | | | (Brebisson in W Smith) Cleve | CAD_TWG | UCOB |
| Diploneis submarginestriata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis submarginestriata | | | Jovanovska, Lange-Bertalot & Levkov | CAD_TWG | CSUSM |
| Diploneis subovalis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diploneidaceae | | | | Diploneis | | Diploneis subovalis | | | Cleve | CAD_TWG | UCOB |
| Discostella | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Discostella | | | | | | CAD_TWG | UCOB |
| Discostella lakuskarluki | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Discostella | | Discostella lakuskarluki | | | | CAD_TWG | EcoAnalysts |
| Discostella pseudostelligera | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Discostella | | Discostella pseudostelligera | | | (Hustedt) Houk & Klee | CAD_TWG | UCOB |
| Discostella sp 1 | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Discostella | | Discostella sp 1 | | | | CAD_TWG | CSUSM |
| Discostella stelligera | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Discostella | | Discostella stelligera | | | (Cleve & Grunow) Houk & Klee | CAD_TWG | UCOB |
| Discostella woltereckii | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Discostella | | Discostella woltereckii | | | (Hustedt) Houk & Klee | CAD_TWG | UCOB |
| Ellerbeckia | | Bacillariophyta | | | Coscinodiscophyceae | | | Paraliales | | | Paraliaceae | | | | Ellerbeckia | | | | | | CAD_TWG | UCOB |
| Ellerbeckia arenaria | | Bacillariophyta | | | Coscinodiscophyceae | | | Paraliales | | | Paraliaceae | | | | Ellerbeckia | | Ellerbeckia arenaria | | | (Moore ex Ralfs) Crawford | CAD_TWG | UCOB |
| Encyonema | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | | | | | CAD_TWG | UCOB |
| Encyonema appalachianum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema appalachianum | | | M. Potapova | CAD_TWG | CSUSM |
| Encyonema auerswaldii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema auerswaldii | | | Rabenhorst | CAD_TWG | UCOB |
| Encyonema caespitosum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema caespitosum | | | Kutzing | CAD_TWG | UCOB |
| Encyonema cf caespitosum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema cf caespitosum | | | | CAD_TWG | CSUSM |
| Encyonema cf evergladianum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema cf evergladianum | | | Krammer | CAD_TWG | EcoAnalysts |
| Encyonema cf gracile | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema cf gracile | | | Kirchn. | CAD_TWG | CSUSM |
| Encyonema cf minutum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema cf minutum | | | (Hilse) D.G.Mann | CAD_TWG | CSUSM |
| Encyonema cf ventricosum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema cf ventricosum | | | (C.Agardh) Grunow | CAD_TWG | CSUSM |
| Encyonema cf yellowstonianum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema cf yellowstonianum | | | Krammer | CAD_TWG | CSUSM |
| Encyonema elginense | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema elginense | | | (Krammer) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Encyonema evergladianum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema evergladianum | | | Krammer | CAD_TWG | EcoAnalysts |
| Encyonema gaeumannii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema gaeumannii | | | (Meister) Krammer | CAD_TWG | EcoAnalysts |
| Encyonema gracile | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema gracile | | | Rabenhorst | CAD_TWG | UCOB |
| Encyonema hamsherae | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema hamsherae | | | D.Winter & L.Bahls | CAD_TWG | EcoAnalysts |
| Encyonema hilliardii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema hilliardii | | | (Manguin) Krammer | CAD_TWG | UCOB |
| Encyonema hintzii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema hintzii | | | Krammer | CAD_TWG | CSUSM |
| Encyonema lacustre | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema lacustre | | | (Agardh) Pantocsek | CAD_TWG | UCOB |
| Encyonema latens | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema latens | | | (Krasske) D.G.Mann | CAD_TWG | NAU |
| Encyonema latum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema latum | | | Krammer | CAD_TWG | UCOB |
| Encyonema leibleinii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema leibleinii | | | | CAD_TWG | CSUSM |
| Encyonema lunatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema lunatum | | | (W Smith) Van Heurck | CAD_TWG | UCOB |
| Encyonema mesianum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema mesianum | | | (Cholnoky) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Encyonema minutum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema minutum | | | (Hilse) D.G.Mann | CAD_TWG | UCOB |
| Encyonema minutum var pseudogracilis | | Heterokontophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Encyonema | | Encyonema minutum | | Encyonema minutum var pseudogracilis | (Cholnoky) Czarn. | CAD_TWG | CSULB-SEAL |
| Encyonema montanum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema montanum | | | Bahls | CAD_TWG | CSUSM |
| Encyonema muelleri | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema muelleri | | | (Hustedt) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Encyonema neogracile | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema neogracile | | | Krammer | CAD_TWG | EcoAnalysts |
| Encyonema nicafei | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema nicafei | | | Spaulding | CAD_TWG | CSUSM |
| Encyonema norvegicum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema norvegicum | | | (Grunow) Mayer | CAD_TWG | UCOB |
| Encyonema obscurum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema obscurum | | | (Krasske) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Encyonema pergracile | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema pergracile | | | Krammer | CAD_TWG | EcoAnalysts |
| Encyonema perpusillum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema perpusillum | | | (A. Cleve) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Encyonema reichardtii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema reichardtii | | | (Krammer) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Encyonema silesiacum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema silesiacum | | | (Bleisch) D.G.Mann | CAD_TWG | UCOB |
| Encyonema sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema sp 1 | | | | CAD_TWG | CSUSM |
| Encyonema sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema sp 2 | | | | CAD_TWG | CSUSM |
| Encyonema sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema sp 3 | | | | CAD_TWG | EcoAnalysts |
| Encyonema sp 5 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema sp 5 | | | | CAD_TWG | CSUSM |
| Encyonema sp 6 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema sp 6 | | | | CAD_TWG | CSUSM |
| Encyonema triangulum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema triangulum | | | (Ehrenberg) Kutzing | CAD_TWG | UCOB |
| Encyonema ventricosum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema ventricosum | | | (C.Agardh) Grunow | CAD_TWG | CSUSM |
| Encyonema vulgare | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema vulgare | | | | CAD_TWG | EcoAnalysts |
| Encyonema yellowstonianum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonema | | Encyonema yellowstonianum | | | | CAD_TWG | CSUSM |
| Encyonopsis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | | | | | CAD_TWG | UCOB |
| Encyonopsis cesatiformis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis cesatiformis | | | Krammer | CAD_TWG | CSUSM |
| Encyonopsis cesatii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis cesatii | | | (Rabenhorst) Krammer | CAD_TWG | UCOB |
| Encyonopsis cf cesatii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis cf cesatii | | | (Rabenhorst) Krammer | CAD_TWG | EcoAnalysts |
| Encyonopsis cf krammeri | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis cf krammeri | | | Reichardt | CAD_TWG | EcoAnalysts |
| Encyonopsis descripta | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis descripta | | | (Hustedt) Krammer | CAD_TWG | UCOB |
| Encyonopsis descriptiformis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis descriptiformis | | | Bahls 2013 | CAD_TWG | EcoAnalysts |
| Encyonopsis falaisensis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis falaisensis | | | (Grunow) Krammer | CAD_TWG | UCOB |
| Encyonopsis hustedtii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis hustedtii | | | Bahls 2013 | CAD_TWG | EcoAnalysts |
| Encyonopsis krammeri | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis krammeri | | | Reichardt | CAD_TWG | CSUSM |
| Encyonopsis medicinalis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis medicinalis | | | | CAD_TWG | EcoAnalysts |
| Encyonopsis microcephala | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis microcephala | | | (Grunow) Krammer | CAD_TWG | UCOB |
| Encyonopsis minuta | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis minuta | | | | CAD_TWG | CSUSM |
| Encyonopsis montana | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis montana | | | Bahls | CAD_TWG | EcoAnalysts |
| Encyonopsis neerlandica | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis neerlandica | | | Van de Vijver, Verweij, van der Wal & A.Mertens | CAD_TWG | EcoAnalysts |
| Encyonopsis sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis sp 1 | | | | CAD_TWG | EcoAnalysts |
| Encyonopsis sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis sp 2 | | | | CAD_TWG | EcoAnalysts |
| Encyonopsis subminuta | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis subminuta | | | Krammer & Reichardt in Krammer | CAD_TWG | UCOB |
| Encyonopsis thumensis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Encyonopsis | | Encyonopsis thumensis | | | | CAD_TWG | EcoAnalysts |
| Entomoneis | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Entomoneidaceae | | | | Entomoneis | | | | | | CAD_TWG | UCOB |
| Entomoneis alata | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Entomoneidaceae | | | | Entomoneis | | Entomoneis alata | | | Ehrenberg | CAD_TWG | UCOB |
| Entomoneis costata | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Entomoneidaceae | | | | Entomoneis | | Entomoneis costata | | | (Hustedt) Reimer | CAD_TWG | CSUSM |
| Entomoneis ornata | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Entomoneidaceae | | | | Entomoneis | | Entomoneis ornata | | | (Bailey) Reimer in Patrick & Reimer | CAD_TWG | UCOB |
| Entomoneis paludosa | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Entomoneidaceae | | | | Entomoneis | | Entomoneis paludosa | | | (W Smith) Reimer in Patrick & Reimer | CAD_TWG | UCOB |
| Eolimna | | Heterokontophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Eolimna | | | | | | CAD_TWG | UCOB |
| Eolimna elorantana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Eolimna | | Eolimna elorantana | | | | CAD_TWG | EcoAnalysts |
| Eolimna muraloides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Eolimna | | Eolimna muraloides | | | (Hustedt) Lange-Bertalot & Kulikovskiy | CAD_TWG | CSUSM |
| Epithemia | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | | | | | CAD_TWG | UCOB |
| Epithemia adnata | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia adnata | | | (Kutzing) Brebisson | CAD_TWG | UCOB |
| Epithemia argus | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia argus | | | (Ehrenberg) Kutzing | CAD_TWG | UCOB |
| Epithemia argus var alpestris | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia argus | | Epithemia argus var alpestris | (W Smith) Grunow | CAD_TWG | UCOB |
| Epithemia frickei | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia frickei | | | Krammer in Lange-Bertalot & Krammer | CAD_TWG | UCOB |
| Epithemia gibba | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia gibba | | | (Ehrenberg) Kutzing | CAD_TWG | CSUSM |
| Epithemia goeppertiana | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia goeppertiana | | | | CAD_TWG | EcoAnalysts |
| Epithemia hyndmanii | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia hyndmanii | | | W Smith | CAD_TWG | UCOB |
| Epithemia operculata | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia operculata | | | (C.Agardh) Ruck & Nakov | CAD_TWG | CSUSM |
| Epithemia proboscidea | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia proboscidea | | | Kutzing | CAD_TWG | CSUSM |
| Epithemia selengaensis | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia selengaensis | | | Vishnyakov, Kulikovskiy & Genkal | CAD_TWG | CSUSM |
| Epithemia sorex | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia sorex | | | Kutzing | CAD_TWG | UCOB |
| Epithemia sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia sp 1 | | | | CAD_TWG | CSUSM |
| Epithemia turgida | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia turgida | | | (Ehrenberg) Kutzing | CAD_TWG | UCOB |
| Epithemia turgida var granulata | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia turgida | | Epithemia turgida var granulata | (Ehrenberg) Brun | CAD_TWG | UCOB |
| Epithemia turgida var westermannii | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Epithemia | | Epithemia turgida | | Epithemia turgida var westermannii | (Ehrenberg) Grunow | CAD_TWG | UCOB |
| Eucocconeis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Eucocconeis | | | | | | CAD_TWG | UCOB |
| Eucocconeis alpestris | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Eucocconeis | | Eucocconeis alpestris | | | (Brun) Lange-Bertalot & Genkal | CAD_TWG | UCOB |
| Eucocconeis flexella | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Eucocconeis | | Eucocconeis flexella | | | (Kutzing) Cleve | CAD_TWG | UCOB |
| Eucocconeis laevis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Eucocconeis | | Eucocconeis laevis | | | (Østrup) Lange-Bertalot | CAD_TWG | UCOB |
| Eunotia | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | | | | | CAD_TWG | UCOB |
| Eunotia ambivalens | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia ambivalens | | | Lange-Bert. & Tagliaventi | CAD_TWG | EcoAnalysts |
| Eunotia arcubus | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia arcubus | | | Norpel & Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Eunotia arcus | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia arcus | | | Ehrenberg | CAD_TWG | UCOB |
| Eunotia areniverma | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia areniverma | | | | CAD_TWG | EcoAnalysts |
| Eunotia bidens | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia bidens | | | Ehrenberg | CAD_TWG | CSUSM |
| Eunotia bilunaris | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia bilunaris | | | (Ehrenberg) Schaarschmidt | CAD_TWG | UCOB |
| Eunotia cf boreotenuis | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia cf boreotenuis | | | Norpel-Schempp & Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Eunotia cf implicata | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia cf implicata | | | | CAD_TWG | CSUSM |
| Eunotia cf minor | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia cf minor | | | (Kutzing) Grunow in Van Heurck | CAD_TWG | CSUSM |
| Eunotia cf subarcuatoides | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia cf subarcuatoides | | | Alles, Noerpel and Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Eunotia circumborealis | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia circumborealis | | | Lange-Bertalot & Norpel in Lange-Bertalot | CAD_TWG | UCOB |
| Eunotia cristagalli | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia cristagalli | | | Cleve | CAD_TWG | UCOB |
| Eunotia curtagrunowii | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia curtagrunowii | | | Norpel-Schempp & Lange-Bertalot | CAD_TWG | CSUSM |
| Eunotia diadema | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia diadema | | | Ehrenberg | CAD_TWG | CSUSM |
| Eunotia eruca | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia eruca | | | (Ehrenberg) Brightwell | CAD_TWG | CSUSM |
| Eunotia exigua | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia exigua | | | (Brebisson in Kutzing) Rabenhorst | CAD_TWG | UCOB |
| Eunotia faba | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia faba | | | | CAD_TWG | EcoAnalysts |
| Eunotia flexuosa | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia flexuosa | | | (Brebisson in Kutzing) Kutzing | CAD_TWG | UCOB |
| Eunotia formica | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia formica | | | Ehrenberg | CAD_TWG | UCOB |
| Eunotia implicata | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia implicata | | | Nörpel, Lange-Bertalot & Alles | CAD_TWG | UCOB |
| Eunotia incisa | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia incisa | | | Smith ex Gregory | CAD_TWG | UCOB |
| Eunotia intermedia | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia intermedia | | | (Krasske ex Hustedt) Nörpel & Lange-Bertalot | CAD_TWG | UCOB |
| Eunotia meisteri | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia meisteri | | | Hustedt | CAD_TWG | EcoAnalysts |
| Eunotia minor | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia minor | | | (Kutzing) Grunow in Van Heurck | CAD_TWG | UCOB |
| Eunotia mucophila | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia mucophila | | | (Lange-Bertalot, Nörpel-Schempp & Alles) Lange-Bertalot | CAD_TWG | UCOB |
| Eunotia muscicola | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia muscicola | | | Krasske | CAD_TWG | UCOB |
| Eunotia naegelii | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia naegelii | | | Migula | CAD_TWG | EcoAnalysts |
| Eunotia nymanniana | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia nymanniana | | | Grunow | CAD_TWG | CSUSM |
| Eunotia paludosa | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia paludosa | | | Grunow | CAD_TWG | UCOB |
| Eunotia pectinalis | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia pectinalis | | | (Kutzing) Rabenhorst | CAD_TWG | UCOB |
| Eunotia pectinalis var undulata | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia pectinalis | | Eunotia pectinalis var undulata | (Ralfs) Rabenhorst | CAD_TWG | UCOB |
| Eunotia perminuta | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia perminuta | | | (Grunow) R.M.Patrick | CAD_TWG | NAU |
| Eunotia perpusilla | | Heterokontophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia perpusilla | | | Grunow in Van Heurck | CAD_TWG | UCOB |
| Eunotia praerupta | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia praerupta | | | Ehrenberg | CAD_TWG | UCOB |
| Eunotia pseudogroenlandica | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia pseudogroenlandica | | | Lange-Bertalot and Tagliaventi | CAD_TWG | EcoAnalysts |
| Eunotia quaternaria | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia quaternaria | | | Ehrenberg | CAD_TWG | UCOB |
| Eunotia rhomboidea | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia rhomboidea | | | Hustedt | CAD_TWG | UCOB |
| Eunotia serra | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia serra | | | Ehrenberg | CAD_TWG | NAU |
| Eunotia soleirolii | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia soleirolii | | | (Kutzing) Rabenhorst | CAD_TWG | UCOB |
| Eunotia sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia sp 1 | | | | CAD_TWG | EcoAnalysts |
| Eunotia sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia sp 2 | | | | CAD_TWG | CSUSM |
| Eunotia sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia sp 3 | | | | CAD_TWG | CSUSM |
| Eunotia subarcuatoides | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia subarcuatoides | | | Alles, Norpel & Lange-Bertalot | CAD_TWG | UCOB |
| Eunotia subherkiniensis | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia subherkiniensis | | | Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Eunotia tecta | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia tecta | | | Krasske | CAD_TWG | EcoAnalysts |
| Eunotia tenella | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia tenella | | | | CAD_TWG | EcoAnalysts |
| Eunotia ursamaioris | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia ursamaioris | | | Lange-Bertalot and Nörpel-Schempp | CAD_TWG | EcoAnalysts |
| Eunotia veneris | | Bacillariophyta | | | Bacillariophyceae | | | Eunotiales | | | Eunotiaceae | | | | Eunotia | | Eunotia veneris | | | (Kuetzing) De Toni | CAD_TWG | EcoAnalysts |
| Eupodiscus | | Bacillariophyta | | | Mediophyceae | | | Eupodiscales | | | Eupodiscaceae | | | | Eupodiscus | | | | | | CAD_TWG | CSUSM |
| Fallacia | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | | | | | CAD_TWG | UCOB |
| Fallacia californica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia californica | | | Stancheva & Manoylov | CAD_TWG | CSUSM |
| Fallacia cryptolyra | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia cryptolyra | | | (Brockmann) Stickle & D.G.Mann | CAD_TWG | UCOB |
| Fallacia floriniae | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia floriniae | | | (M.Moller) Witkowski | CAD_TWG | CSUSM |
| Fallacia fracta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia fracta | | | (Hustedt) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Fallacia helensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia helensis | | | (Schulz) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Fallacia hodgeana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia hodgeana | | | (R.M.Patrick & Freese) Y.H.Li & H.Suzuki | CAD_TWG | CSUSM |
| Fallacia indifferens | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia indifferens | | | (Hustedt) D.G.Mann | CAD_TWG | NAU |
| Fallacia insociabilis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia insociabilis | | | (Krasske) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Fallacia latelongitudinalis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia latelongitudinalis | | | (Patrick) Potapova | CAD_TWG | EcoAnalysts |
| Fallacia lenzii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia lenzii | | | (Hustedt) Lange-Bertalot in Werum & Lange-Bertalot | CAD_TWG | UCOB |
| Fallacia litoricola | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia litoricola | | | (Hustedt) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Fallacia lucinensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia lucinensis | | | (Hustedt) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Fallacia maceria | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia maceria | | | (Schimanski) Lange-Bertalot | CAD_TWG | UCOB |
| Fallacia monoculata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia monoculata | | | (Hustedt) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Fallacia nyella | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia nyella | | | (Hustedt) D.G.Mann | CAD_TWG | UCOB |
| Fallacia omissa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia omissa | | | (Hustedt) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Fallacia pulchella | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia pulchella | | | Sabbe & Muylaert in Sabbe, Vyverman & Muylaert | CAD_TWG | UCOB |
| Fallacia pygmaea | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia pygmaea | | | (Kutzing) Stickle & Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Fallacia subforcipata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia subforcipata | | | (Hustedt) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Fallacia subhamulata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia subhamulata | | | (Grunow) D.G.Mann | CAD_TWG | UCOB |
| Fallacia sublucidula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia sublucidula | | | (Hustedt) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Fallacia tenera | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia tenera | | | (Hustedt) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Fallacia vitrea | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Fallacia | | Fallacia vitrea | | | (Ostrup) D.G.Mann | CAD_TWG | CSUSM |
| Fistulifera | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Fistulifera | | | | | | CAD_TWG | UCOB |
| Fistulifera pelliculosa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Fistulifera | | Fistulifera pelliculosa | | | (Brebisson) Lange-Bertalot | CAD_TWG | UCOB |
| Fistulifera saprophila | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Fistulifera | | Fistulifera saprophila | | | (Lange-Bertalot & Bonik) Lange-Bertalot | CAD_TWG | UCOB |
| Fragilaria | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | | | | | CAD_TWG | UCOB |
| Fragilaria amphicephaloides | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria amphicephaloides | | | Lange-Bert. | CAD_TWG | CSUSM |
| Fragilaria austriaca | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria austriaca | | | | CAD_TWG | EcoAnalysts |
| Fragilaria bidens | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria bidens | | | Heiberg | CAD_TWG | CSUSM |
| Fragilaria brevistriata var trigona | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria brevistriata | | Fragilaria brevistriata var trigona | Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Fragilaria capensis | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria capensis | | | | CAD_TWG | EcoAnalysts |
| Fragilaria capucina | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria capucina | | | Desmazieres | CAD_TWG | UCOB |
| Fragilaria capucina var biconstricta | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria capucina | | Fragilaria capucina var biconstricta | (Rabenhorst) Schonfeldt | CAD_TWG | UCOB |
| Fragilaria capucina var distans | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria capucina | | Fragilaria capucina var distans | (W Smith) Lange-Bertalot | CAD_TWG | CSUSM |
| Fragilaria capucina var sublinearis | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria capucina | | Fragilaria capucina var sublinearis | Manguin ex Kociolek and Reviers | CAD_TWG | UCOB |
| Fragilaria cf austriaca | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria cf austriaca | | | | CAD_TWG | CSUSM |
| Fragilaria cf crotonensis | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria cf crotonensis | | | Kitton | CAD_TWG | CSUSM |
| Fragilaria cf perminuta | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria cf perminuta | | | (Grunow) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Fragilaria cf radians | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria cf radians | | | (Kutzing) Williams & Round | CAD_TWG | CSUSM |
| Fragilaria cf tenera | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria cf tenera | | | (W Smith) Lange-Bertalot | CAD_TWG | CSUSM |
| Fragilaria cf vaucheriae | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria cf vaucheriae | | | (Kutzing) Petersen | CAD_TWG | EcoAnalysts |
| Fragilaria crotonensis | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria crotonensis | | | Kitton | CAD_TWG | UCOB |
| Fragilaria crotonensis var oregona | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria crotonensis | | Fragilaria crotonensis var oregona | | CAD_TWG | UCOB |
| Fragilaria fragilarioides | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria fragilarioides | | | (Grunow) Cholnoky | CAD_TWG | EcoAnalysts |
| Fragilaria gracilis | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria gracilis | | | Ostrup | CAD_TWG | CSUSM |
| Fragilaria intermedia | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria intermedia | | | (Grunow) Grunow | CAD_TWG | CSUSM |
| Fragilaria mazamaensis | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria mazamaensis | | | (Sovereign) Lange-Bertalot | CAD_TWG | CSUSM |
| Fragilaria mesolepta | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria mesolepta | | | Rabenhorst | CAD_TWG | UCOB |
| Fragilaria microvaucheriae | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria microvaucheriae | | | | CAD_TWG | EcoAnalysts |
| Fragilaria pararumpens | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria pararumpens | | | Lange-Bertalot, G.Hofmann & Werum | CAD_TWG | EcoAnalysts |
| Fragilaria pectinalis | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria pectinalis | | | (O.F.Muller) Lyngbye | CAD_TWG | CSUSM |
| Fragilaria perminuta | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria perminuta | | | (Grunow) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Fragilaria radians | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria radians | | | (Kutzing) Williams & Round | CAD_TWG | UCOB |
| Fragilaria recapitellata | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria recapitellata | | | Lange-Bertalot et Metzeltin | CAD_TWG | CSUSM |
| Fragilaria rumpens | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria rumpens | | | (Kutzing) G.W.F.Carlson | CAD_TWG | CSUSM |
| Fragilaria saxoplanctonica | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria saxoplanctonica | | | | CAD_TWG | EcoAnalysts |
| Fragilaria sepes | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria sepes | | | Ehrenberg | CAD_TWG | EcoAnalysts |
| Fragilaria socia | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria socia | | | (J.H.Wallace) Lange-Bertalot | CAD_TWG | Rhithron |
| Fragilaria sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria sp 1 | | | | CAD_TWG | EcoAnalysts |
| Fragilaria sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria sp 2 | | | | CAD_TWG | CSUSM |
| Fragilaria sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria sp 3 | | | | CAD_TWG | EcoAnalysts |
| Fragilaria sp 4 | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria sp 4 | | | | CAD_TWG | CSUSM |
| Fragilaria tenera | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria tenera | | | (W Smith) Lange-Bertalot | CAD_TWG | UCOB |
| Fragilaria tenera var nanana | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria tenera | | Fragilaria tenera var nanana | (Lange-Bertalot) Lange-Bertalot & S.Ulrich | CAD_TWG | CSUSM |
| Fragilaria vaucheriae | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilaria | | Fragilaria vaucheriae | | | (Kutzing) Petersen | CAD_TWG | UCOB |
| Fragilariaceae | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | | | | | | | CAD_TWG | UCOB |
| Fragilariforma | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilariforma | | | | | | CAD_TWG | UCOB |
| Fragilariforma bicapitata | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilariforma | | Fragilariforma bicapitata | | | (A Mayer) Williams & Round | CAD_TWG | UCOB |
| Fragilariforma nitzschioides | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilariforma | | Fragilariforma nitzschioides | | | (Grunow) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Fragilariforma undata | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilariforma | | Fragilariforma undata | | | (W.Smith) Heudre, C.E.Wetzel & Ector | CAD_TWG | CSUSM |
| Fragilariforma virescens | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Fragilariforma | | Fragilariforma virescens | | | (Ralfs) Williams & Round | CAD_TWG | UCOB |
| Frustulia | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | | | | | CAD_TWG | UCOB |
| Frustulia amphipleuroides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia amphipleuroides | | | (Grunow in Cleve & Grunow) Cleve-Euler | CAD_TWG | UCOB |
| Frustulia asiatica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia asiatica | | | (Skvortzow) D.Metzeltin, H.Lange-Bert. & S.Nergui | CAD_TWG | CSUSM |
| Frustulia capitata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia capitata | | | Graeff & Kociolek | CAD_TWG | UCOB |
| Frustulia cf asiatica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia cf asiatica | | | (Skvortzow) D.Metzeltin, H.Lange-Bert. & S.Nergui | CAD_TWG | CSUSM |
| Frustulia cf erifuga | | Heterokontophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia cf erifuga | | | Lange-Bertalot & Krammer | CAD_TWG | CSULB-SEAL |
| Frustulia crassinervia | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia crassinervia | | | (Brébisson ex W.Smith) Lange-Bertalot & Krammer | CAD_TWG | UCOB |
| Frustulia creuzburgensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia creuzburgensis | | | (Krasske) Hustedt | CAD_TWG | UCOB |
| Frustulia erifuga | | Heterokontophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia erifuga | | | Lange-Bertalot & Krammer | CAD_TWG | CSULB-SEAL |
| Frustulia inculta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia inculta | | | P.A.Siver, Pelczar & P.B.Hamilton | CAD_TWG | CSUSM |
| Frustulia krammeri | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia krammeri | | | Lange-Bertalot & Metzeltin | CAD_TWG | UCOB |
| Frustulia latita | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia latita | | | C.L.Graeff & Kociolek | CAD_TWG | CSUSM |
| Frustulia rexii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia rexii | | | Graeff, C., J.P.Kociolek & A.L.Burliga (2012) | CAD_TWG | EcoAnalysts |
| Frustulia rhomboides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia rhomboides | | | (Ehrenberg) De Toni | CAD_TWG | NAU |
| Frustulia saxonica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia saxonica | | | Rabenhorst | CAD_TWG | UCOB |
| Frustulia soror | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia soror | | | Graeff and Kociolek | CAD_TWG | EcoAnalysts |
| Frustulia sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia sp 1 | | | | CAD_TWG | CSUSM |
| Frustulia sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia sp 2 | | | | CAD_TWG | CSUSM |
| Frustulia sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia sp 3 | | | | CAD_TWG | CSUSM |
| Frustulia vulgaris | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia vulgaris | | | (Thwaites) De Toni | CAD_TWG | UCOB |
| Frustulia weinholdii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Frustulia | | Frustulia weinholdii | | | Hustedt, F. (1937) | CAD_TWG | EcoAnalysts |
| Geissleria | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | | | | | CAD_TWG | UCOB |
| Geissleria acceptata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | Geissleria acceptata | | | (Hustedt) Lange-Bertalot & Metzeltin | CAD_TWG | UCOB |
| Geissleria aikenensis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | Geissleria aikenensis | | | (Patrick) Torgan & Olivera | CAD_TWG | UCOB |
| Geissleria cascadensis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | Geissleria cascadensis | | | (Sovereign) Stancheva & S.A.Spaulding | CAD_TWG | CSUSM |
| Geissleria cf decussis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | Geissleria cf decussis | | | (Ostrup) Lange-Bertalot & Metzeltin | CAD_TWG | CSUSM |
| Geissleria decussis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | Geissleria decussis | | | (Ostrup) Lange-Bertalot & Metzeltin | CAD_TWG | UCOB |
| Geissleria dolomitica | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | Geissleria dolomitica | | | (W.Bock) Lange-Bertalot & Metzeltin | CAD_TWG | CSUSM |
| Geissleria ignota | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | Geissleria ignota | | | (Krasske) Lange-Bertalot & Metzeltin | CAD_TWG | UCOB |
| Geissleria kriegeri | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | Geissleria kriegeri | | | (Krasske) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Geissleria paludosa | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | Geissleria paludosa | | | (Hustedt) Lange-Bertalot & Metzeltin | CAD_TWG | UCOB |
| Geissleria punctifera | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | Geissleria punctifera | | | (Hustedt) Metzeltin, Lange-Bertalot &García-Rodríguez | CAD_TWG | UCOB |
| Geissleria schoenfeldii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | Geissleria schoenfeldii | | | (Hustedt) Lange-Bertalot & Metzeltin | CAD_TWG | UCOB |
| Geissleria similis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | Geissleria similis | | | (Krasske) Lange-Bertalot and Metzeltin | CAD_TWG | EcoAnalysts |
| Geissleria sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | Geissleria sp 1 | | | | CAD_TWG | EcoAnalysts |
| Geissleria sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Geissleria | | Geissleria sp 2 | | | | CAD_TWG | EcoAnalysts |
| Gliwiczia | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Gliwiczia | | | | | | CAD_TWG | CSUSM |
| Gliwiczia calcar | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Gliwiczia | | Gliwiczia calcar | | | (Cleve) M.Kulikovskiy, Lange-Bertalot & A.Witkowski | CAD_TWG | CSUSM |
| Gomphoneis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | | | | | CAD_TWG | UCOB |
| Gomphoneis cf olivaceoides | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis cf olivaceoides | | | (Hustedt) Carter in Carter & Bailey-Watts | CAD_TWG | CSUSM |
| Gomphoneis clevei | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphonema clevei | | | (Fricke) Gil | CAD_TWG | CSUSM |
| Gomphoneis eriense | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis eriense | | | (Grunow) Skvortzow & Meyer | CAD_TWG | UCOB |
| Gomphoneis eriense var angularis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis eriense | | Gomphoneis eriense var angularis | Kociolek & Stoermer | CAD_TWG | CSUSM |
| Gomphoneis eriense var variabilis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis eriense | | Gomphoneis eriense var variabilis | Kociolek & Stoermer | CAD_TWG | UCOB |
| Gomphoneis exigua | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis exigua | | | (Kutzing) Medlin | CAD_TWG | CSUSM |
| Gomphoneis herculeana | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis herculeana | | | (Ehrenberg) Cleve | CAD_TWG | UCOB |
| Gomphoneis herculeana var abundans | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis herculeana | | Gomphoneis herculeana var abundans | Kociolek & Stoermer | CAD_TWG | UCOB |
| Gomphoneis herculeana var loweii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis herculeana | | Gomphoneis herculeana var loweii | Kociolek & Stoermer | CAD_TWG | UCOB |
| Gomphoneis herculeana var septiceps | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis herculeana | | Gomphoneis herculeana var septiceps | M Schmidt in Schmidt et al | CAD_TWG | UCOB |
| Gomphoneis mammilla | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis mammilla | | | (Ehrenberg) Cleve | CAD_TWG | UCOB |
| Gomphoneis minuta | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis minuta | | | (Stone) Kociolek & Stoermer | CAD_TWG | UCOB |
| Gomphoneis minuta var cassieae | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis minuta | | Gomphoneis minuta var cassieae | Kociolek & Stoermer | CAD_TWG | UCOB |
| Gomphoneis oreophila | | Heterokontophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis oreophila | | | | CAD_TWG | CSUSM |
| Gomphoneis pseudookunoi | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis pseudookunoi | | | A.Tuji | CAD_TWG | CSUSM |
| Gomphoneis quadripunctata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis quadripunctata | | | (Ostrup) P.Dawson ex R.Ross & P.A.Sims | CAD_TWG | CSUSM |
| Gomphoneis septa | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis septa | | | (F.Moghadam) Kociolek, Stoermer & Bahls | CAD_TWG | EcoAnalysts |
| Gomphoneis subherculeana | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphoneis | | Gomphoneis subherculeana | | | Kociolek & Stoermer | CAD_TWG | UCOB |
| Gomphonella | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonella | | | | | | CAD_TWG | CSUSM |
| Gomphonella calcarea | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonella | | Gomphonella calcarea | | | (Cleve) R.Jahn & N.Abarca | CAD_TWG | CSUSM |
| Gomphonella olivacea | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonella | | Gomphonella olivacea | | | (Hornem.) Rabenh. | CAD_TWG | CSUSM |
| Gomphonella pseudookunoi | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonella | | Gomphonella pseudookunoi | | | (Tuji) Tuji | CAD_TWG | EcoAnalysts |
| Gomphonella sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonella | | Gomphonella sp 1 | | | | CAD_TWG | CSUSM |
| Gomphonella sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonella | | Gomphonella sp 2 | | | | CAD_TWG | CSUSM |
| Gomphonella sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonella | | Gomphonella sp 3 | | | | CAD_TWG | EcoAnalysts |
| Gomphonema | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | | | | | CAD_TWG | UCOB |
| Gomphonema acidoclinatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema acidoclinatum | | | | CAD_TWG | CSUSM |
| Gomphonema acuminatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema acuminatum | | | Ehrenberg | CAD_TWG | UCOB |
| Gomphonema acutiusculum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema acutiusculum | | | (Otto Müller) Cleve-Euler | CAD_TWG | UCOB |
| Gomphonema aequale | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema aequale | | | W.Gregory | CAD_TWG | CSUSM |
| Gomphonema affine | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema affine | | | Kutzing | CAD_TWG | UCOB |
| Gomphonema amerhombicum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema amerhombicum | | | | CAD_TWG | CSUSM |
| Gomphonema americobtusatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema americobtusatum | | | Reichardt & Lange-Bertalot in Reichardt | CAD_TWG | UCOB |
| Gomphonema amoenum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema amoenum | | | Lange-Bertalot in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Gomphonema angustatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema angustatum | | | (Kutzing) Rabenhorst | CAD_TWG | UCOB |
| Gomphonema angustivalva | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema angustivalva | | | E. Reichardt | CAD_TWG | EcoAnalysts |
| Gomphonema angustum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema angustum | | | Agardh | CAD_TWG | UCOB |
| Gomphonema anjae | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema anjae | | | Lange-Bertalot & Reichardt | CAD_TWG | EcoAnalysts |
| Gomphonema augur | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema augur | | | Ehrenberg | CAD_TWG | UCOB |
| Gomphonema auritum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema auritum | | | A.Braun ex Kutzing | CAD_TWG | EcoAnalysts |
| Gomphonema balticum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema balticum | | | Cleve | CAD_TWG | CSUSM |
| Gomphonema bozenae | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema bozenae | | | Lange-Bert. & Reichardt in Lange-Bert. & Metzeltin | CAD_TWG | UCOB |
| Gomphonema brasiliense | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema brasiliense | | | Grunow | CAD_TWG | UCOB |
| Gomphonema brebissonii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema brebissonii | | | Kutzing | CAD_TWG | UCOB |
| Gomphonema calcifugum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema calcifugum | | | Lange-Bert. et E. Reichardt | CAD_TWG | CSUSM |
| Gomphonema californicum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema californicum | | | Stancheva and Kociolek | CAD_TWG | CSUSM |
| Gomphonema caperatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema caperatum | | | Ponader et Potapova | CAD_TWG | CSUSM |
| Gomphonema capitatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema capitatum | | | Ehrenberg | CAD_TWG | UCOB |
| Gomphonema capsulare | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema capsulare | | | Krasske | CAD_TWG | EcoAnalysts |
| Gomphonema cf amerhombicum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf amerhombicum | | | E.Reichardt | CAD_TWG | CSUSM |
| Gomphonema cf angustatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf angustatum | | | (Kutzing) Rabenhorst | CAD_TWG | CSUSM |
| Gomphonema cf angustivalva | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf angustivalva | | | E. Reichardt | CAD_TWG | EcoAnalysts |
| Gomphonema cf bohemicum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf bohemicum | | | Reichelt & Fricke in Schmidt et al | CAD_TWG | CSUSM |
| Gomphonema cf caperatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf caperatum | | | | CAD_TWG | CSUSM |
| Gomphonema cf clavatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf clavatum | | | Ehrenberg | CAD_TWG | CSUSM |
| Gomphonema cf cymbelliclinum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf cymbelliclinum | | | | CAD_TWG | CSUSM |
| Gomphonema cf exilissimum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf exilissimum | | | Kützing | CAD_TWG | CSUSM |
| Gomphonema cf gracile | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf gracile | | | Ehrenberg | CAD_TWG | CSUSM |
| Gomphonema cf innocens | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf innocens | | | | CAD_TWG | CSUSM |
| Gomphonema cf insigne | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf insigne | | | W.Greg. | CAD_TWG | CSUSM |
| Gomphonema cf insigniforme | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf insigniforme | | | E.Reichardt & Lange-Bertalot | CAD_TWG | CSUSM |
| Gomphonema cf kobayasii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf kobayasii | | | Kociolek & J.C.Kingston | CAD_TWG | CSUSM |
| Gomphonema cf lagenula | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf lagenula | | | Kutzing | CAD_TWG | CSUSM |
| Gomphonema cf mexicanum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf mexicanum | | | Grunow in Van Heurck | CAD_TWG | CSUSM |
| Gomphonema cf micropus | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf micropus | | | | CAD_TWG | CSUSM |
| Gomphonema cf minutum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf minutum | | | (Agardh) Agardh | CAD_TWG | CSUSM |
| Gomphonema cf parvulius | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf parvulius | | | (Lange-Bert. & E.Reichardt) Lange-Bert. & E.Reichardt | CAD_TWG | CSUSM |
| Gomphonema cf parvulum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf parvulum | | | | CAD_TWG | CSUSM |
| Gomphonema cf stoermeri | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf stoermeri | | | Kociolek & J.C.Kingston | CAD_TWG | CSUSM |
| Gomphonema cf vibrioides | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cf vibrioides | | | Reichardt and Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Gomphonema commutatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema commutatum | | | Grunow in Van Heurck | CAD_TWG | UCOB |
| Gomphonema contraturris | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema contraturris | | | Lange-Bertalot & Reichardt in Lange-Bertalot | CAD_TWG | UCOB |
| Gomphonema coronatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema coronatum | | | Ehrenberg | CAD_TWG | EcoAnalysts |
| Gomphonema cymbelliclinum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema cymbelliclinum | | | Reichardt et Lange-Bertalot | CAD_TWG | CSUSM |
| Gomphonema dichotomum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema dichotomum | | | Kutzing | CAD_TWG | UCOB |
| Gomphonema drutelingense | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema drutelingense | | | Reichardt | CAD_TWG | UCOB |
| Gomphonema duplipunctatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema duplipunctatum | | | Lange-Bertalot & E.Reichardt | CAD_TWG | CSUSM |
| Gomphonema entolejum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema entolejum | | | Ostrup | CAD_TWG | UCOB |
| Gomphonema exiguum var minutissimum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema exiguum | | Gomphonema exiguum var minutissimum | Grunow | CAD_TWG | NAU |
| Gomphonema exilissimum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema exilissimum | | | Kützing | CAD_TWG | UCOB |
| Gomphonema freesei | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema freesei | | | Lowe & Kociolek | CAD_TWG | UCOB |
| Gomphonema germainii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema germainii | | | | CAD_TWG | EcoAnalysts |
| Gomphonema gracile | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema gracile | | | Ehrenberg | CAD_TWG | UCOB |
| Gomphonema grunowii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema grunowii | | | R.M.Patrick & Reimer | CAD_TWG | CSUSM |
| Gomphonema hebridense | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema hebridense | | | W.Gregory | CAD_TWG | CSUSM |
| Gomphonema innocens | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema innocens | | | | CAD_TWG | CSUSM |
| Gomphonema insigne | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema insigne | | | Gregory | CAD_TWG | UCOB |
| Gomphonema insularum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema insularum | | | Kociolek, J.B.Woodward & C.Graeff | CAD_TWG | EcoAnalysts |
| Gomphonema intricatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema intricatum | | | Kutzing | CAD_TWG | UCOB |
| Gomphonema italicum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema italicum | | | Kutzing | CAD_TWG | UCOB |
| Gomphonema kobayasii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema kobayasii | | | Kociolek & Kingston | CAD_TWG | UCOB |
| Gomphonema lagenula | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema lagenula | | | Kutzing | CAD_TWG | UCOB |
| Gomphonema laticollum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema laticollum | | | Reichardt | CAD_TWG | EcoAnalysts |
| Gomphonema lippertii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema lippertii | | | Kutzing | CAD_TWG | EcoAnalysts |
| Gomphonema louisiananum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema louisiananum | | | Kalinsky | CAD_TWG | EcoAnalysts |
| Gomphonema maclaughlinii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema maclaughlinii | | | E.Reichardt | CAD_TWG | EcoAnalysts |
| Gomphonema mehleri | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema mehleri | | | K.E.Camburn 1978 | CAD_TWG | EcoAnalysts |
| Gomphonema mexicanum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema mexicanum | | | Grunow in Van Heurck | CAD_TWG | UCOB |
| Gomphonema micropumilum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema micropumilum | | | Reichardt | CAD_TWG | UCOB |
| Gomphonema micropus | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema micropus | | | Kutzing | CAD_TWG | UCOB |
| Gomphonema minusculum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema minusculum | | | Krasske | CAD_TWG | CSUSM |
| Gomphonema minutum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema minutum | | | (Agardh) Agardh | CAD_TWG | UCOB |
| Gomphonema minutum f pachypus | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema minutum | | Gomphonema minutum f pachypus | Lange-Bertalot & Reichardt | CAD_TWG | EcoAnalysts |
| Gomphonema montanum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema montanum | | | (Schumann) Grunow in Schneider | CAD_TWG | UCOB |
| Gomphonema olivaceoides | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema olivaceoides | | | Hustedt | CAD_TWG | CSUSM |
| Gomphonema olivaceoides var densestriata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema olivaceoides | | Gomphonema olivaceoides var densestriata | | CAD_TWG | EcoAnalysts |
| Gomphonema pala | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema pala | | | Reichardt | CAD_TWG | EcoAnalysts |
| Gomphonema parvulius | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema parvulius | | | (Lange-Bertalot and Reichardt) Lange-Bertalot and Reichardt | CAD_TWG | EcoAnalysts |
| Gomphonema parvulum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema parvulum | | | (Kutzing) Kutzing | CAD_TWG | UCOB |
| Gomphonema patricki | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema patricki | | | Kociolek & Stoermer in Kociolek, Stoermer & Edlund | CAD_TWG | UCOB |
| Gomphonema procerum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema procerum | | | Reichardt & Lange-Bertalot | CAD_TWG | UCOB |
| Gomphonema productum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema productum | | | (Grunow) Lange-Bertalot & E.Reichardt | CAD_TWG | UCOB |
| Gomphonema pseudoaugur | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema pseudoaugur | | | Lange-Bertalot | CAD_TWG | UCOB |
| Gomphonema pseudobohemicum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema pseudobohemicum | | | Lange-Bertalot and Reichardt | CAD_TWG | EcoAnalysts |
| Gomphonema pseudotenellum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema pseudotenellum | | | Lange-Bertalot in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Gomphonema pumilum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema pumilum | | | (Grunow) Reichardt & Lange-Bertalot | CAD_TWG | UCOB |
| Gomphonema pumilum var elegans | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema pumilum | | Gomphonema pumilum var elegans | E. Reichardt | CAD_TWG | EcoAnalysts |
| Gomphonema pumilum var rigidum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema pumilum | | Gomphonema pumilum var rigidum | Reichardt and Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Gomphonema punae | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema punae | | | Lange-Bertalot,Rumrich:Rumrich,Lange-Bertalot,Rumr | CAD_TWG | UCOB |
| Gomphonema pusillum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema pusillum | | | | CAD_TWG | EcoAnalysts |
| Gomphonema pygmaeum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema pygmaeum | | | Kociolek & Stoermer | CAD_TWG | UCOB |
| Gomphonema reichardtii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema reichardtii | | | Lange-Bertalot | CAD_TWG | CSUSM |
| Gomphonema saprophilum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema saprophilum | | | Lange-Bertalot & E.Reichardt | CAD_TWG | CSUSM |
| Gomphonema sarcophagus | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sarcophagus | | | Gregory | CAD_TWG | UCOB |
| Gomphonema sierranum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sierrianum | | | Stancheva & Kociolek | CAD_TWG | CSUSM |
| Gomphonema sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 1 | | | | CAD_TWG | EcoAnalysts |
| Gomphonema sp 10 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 10 | | | | CAD_TWG | EcoAnalysts |
| Gomphonema sp 11 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 11 | | | | CAD_TWG | EcoAnalysts |
| Gomphonema sp 12 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 12 | | | | CAD_TWG | EcoAnalysts |
| Gomphonema sp 13 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 13 | | | | CAD_TWG | EcoAnalysts |
| Gomphonema sp 14 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 14 | | | | CAD_TWG | EcoAnalysts |
| Gomphonema sp 15 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 15 | | | | CAD_TWG | CSUSM |
| Gomphonema sp 16 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 16 | | | | CAD_TWG | CSUSM |
| Gomphonema sp 18 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 18 | | | E.Reichardt 1999 | CAD_TWG | EcoAnalysts |
| Gomphonema sp 19 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 19 | | | | CAD_TWG | CSUSM |
| Gomphonema sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 2 | | | | CAD_TWG | EcoAnalysts |
| Gomphonema sp 2 SWAMP KB | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 2 SWAMP KB | | | | CAD_TWG | UCOB |
| Gomphonema sp 20 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 20 | | | | CAD_TWG | CSUSM |
| Gomphonema sp 21 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 21 | | | | CAD_TWG | CSUSM |
| Gomphonema sp 22 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 22 | | | | CAD_TWG | CSUSM |
| Gomphonema sp 23 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 23 | | | | CAD_TWG | CSUSM |
| Gomphonema sp 24 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 24 | | | | CAD_TWG | CSUSM |
| Gomphonema sp 25 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 25 | | | | CAD_TWG | CSUSM |
| Gomphonema sp 26 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 26 | | | | CAD_TWG | CSUSM |
| Gomphonema sp 27 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 27 | | | | CAD_TWG | CSUSM |
| Gomphonema sp 28 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 28 | | | | CAD_TWG | EcoAnalysts |
| Gomphonema sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 3 | | | | CAD_TWG | EcoAnalysts |
| Gomphonema sp 4 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 4 | | | | CAD_TWG | EcoAnalysts |
| Gomphonema sp 5 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 5 | | | | CAD_TWG | EcoAnalysts |
| Gomphonema sp 6 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 6 | | | | CAD_TWG | CSUSM |
| Gomphonema sp 7 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 7 | | | | CAD_TWG | CSUSM |
| Gomphonema sp 8 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 8 | | | | CAD_TWG | CSUSM |
| Gomphonema sp 8 SWAMP JR | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sp 8 SWAMP JR | | | | CAD_TWG | UCOB |
| Gomphonema sphaerophorum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema sphaerophorum | | | Ehrenberg | CAD_TWG | UCOB |
| Gomphonema stoermeri | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema stoermeri | | | Kociolek & Kingston | CAD_TWG | UCOB |
| Gomphonema subclavatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema subclavatum | | | (Grunow in Van Heurck) Grunow | CAD_TWG | UCOB |
| Gomphonema subtile | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema subtile | | | Ehrenberg | CAD_TWG | UCOB |
| Gomphonema subtile var sagitta | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema subtile | | Gomphonema subtile var sagitta | | CAD_TWG | EcoAnalysts |
| Gomphonema truncatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema truncatum | | | Ehrenberg | CAD_TWG | UCOB |
| Gomphonema truncatum var elongata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema truncatum | | Gomphonema truncatum var elongata | (Peragallo & Heribaud) Patrick in Patrick & Reimer | CAD_TWG | UCOB |
| Gomphonema truncatum var turgidum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema truncatum | | Gomphonema truncatum var turgidum | (Ehrenberg) R.M.Patrick | CAD_TWG | CSUSM |
| Gomphonema utae | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema utae | | | Lange-Bertalot & Reichardt in Reichardt | CAD_TWG | UCOB |
| Gomphonema variostriatum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema variostriatum | | | | CAD_TWG | EcoAnalysts |
| Gomphonema ventricosum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema ventricosum | | | Gregory | CAD_TWG | NAU |
| Gomphonema vibrio | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema vibrio | | | Ehrenberg | CAD_TWG | UCOB |
| Gomphonema vibrio var bohemicum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema vibrio | | Gomphonema vibrio var bohemicum | (Reichelt & Fricke) R.Ross | CAD_TWG | CSUSM |
| Gomphonema vibrioides | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphonema | | Gomphonema vibrioides | | | Reichardt et Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Gomphonemataceae | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | | | | | | | CAD_TWG | UCOB |
| Gomphonemopsis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Gomphonemopsis | | | | | | CAD_TWG | CSUSM |
| Gomphonemopsis exigua | | Heterokontophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Gomphonemopsis | | Gomphonemopsis exigua | | | (Kützing) L.K.Medlin | CAD_TWG | NAU |
| Gomphonitzschia | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Gomphonitzschia | | | | | Grunow | CAD_TWG | EcoAnalysts |
| Gomphosinica | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphosinica | | | | | (Kociolek and Stoermer) Kociolek, You and Wang | CAD_TWG | CSUSM |
| Gomphosinica geitleri | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Gomphosinica | | Gomphosinica geitleri | | | (Kociolek and Stoermer) Kociolek, You and Wang | CAD_TWG | CSUSM |
| Gomphosphenia | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Gomphosphenia | | | | | | CAD_TWG | UCOB |
| Gomphosphenia americana | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Gomphosphenia | | Gomphosphenia americana | | | Kociolek et Thomas | CAD_TWG | CSUSM |
| Gomphosphenia cf tackei | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Gomphosphenia | | Gomphosphenia cf tackei | | | (Hustedt) Lange-Bertalot | CAD_TWG | CSUSM |
| Gomphosphenia indistincta | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Gomphosphenia | | Gomphosphenia indistincta | | | Kociolek and Thomas 2014 | CAD_TWG | EcoAnalysts |
| Gomphosphenia praegnans | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Gomphosphenia | | Gomphosphenia praegnans | | | Ress, Thomas et Kociolek | CAD_TWG | CSUSM |
| Gomphosphenia sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Gomphosphenia | | Gomphosphenia sp 3 | | | | CAD_TWG | EcoAnalysts |
| Gomphosphenia sp 4 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Gomphosphenia | | Gomphosphenia sp 4 | | | | CAD_TWG | EcoAnalysts |
| Gomphosphenia stoermeri | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Gomphosphenia | | Gomphosphenia stoermeri | | | Kociolek & Thomas | CAD_TWG | EcoAnalysts |
| Gomphosphenia tackei | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Gomphosphenia | | Gomphosphenia tackei | | | (Hustedt) Lange-Bertalot | CAD_TWG | NAU |
| Grunowia | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Grunowia | | | | | | CAD_TWG | CSUSM |
| Grunowia solgensis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Grunowia | | Grunowia solgensis | | | (A.Cleve) Aboal | CAD_TWG | CSUSM |
| Grunowia tabellaria | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Grunowia | | Grunowia tabellaria | | | (Grunow) Rabenhorst | CAD_TWG | CSUSM |
| Gyrosigma | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | | | | | CAD_TWG | UCOB |
| Gyrosigma acuminatum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma acuminatum | | | (Kutzing) Rabenhorst | CAD_TWG | UCOB |
| Gyrosigma attenuatum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma attenuatum | | | (Kutzing) Rabenhorst | CAD_TWG | UCOB |
| Gyrosigma cf acuminatum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma cf acuminatum | | | (Kutzing) Rabenhorst | CAD_TWG | CSUSM |
| Gyrosigma cf attenuatum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma cf attenuatum | | | (Kutz.) Rabenh. | CAD_TWG | CSUSM |
| Gyrosigma cf nodiferum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma cf nodiferum | | | (Grunow) Reimer | CAD_TWG | CSUSM |
| Gyrosigma cf scalproides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma cf scalproides | | | (Rabenhorst) Cleve | CAD_TWG | CSUSM |
| Gyrosigma macrum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma macrum | | | (Smith) Griffith & Henfrey | CAD_TWG | UCOB |
| Gyrosigma obtusatum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma obtusatum | | | (Sullivant) Boyer | CAD_TWG | UCOB |
| Gyrosigma reimeri | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma reimeri | | | Sterrenburg | CAD_TWG | EcoAnalysts |
| Gyrosigma scalproides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma scalproides | | | (Rabenhorst) Cleve | CAD_TWG | UCOB |
| Gyrosigma sciotoense | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma sciotoense | | | (W.S.Sullivant) Cleve | CAD_TWG | CSUSM |
| Gyrosigma sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma sp 2 | | | | CAD_TWG | CSUSM |
| Gyrosigma sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma sp 3 | | | | CAD_TWG | CSUSM |
| Gyrosigma sp 4 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma sp 4 | | | | CAD_TWG | EcoAnalysts |
| Gyrosigma strigilis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Gyrosigma | | Gyrosigma strigilis | | | (W.Smith) J.W.Griffin & Henfrey | CAD_TWG | EcoAnalysts |
| Halamphora | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | | | | | CAD_TWG | UCOB |
| Halamphora acutiuscula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora acutiuscula | | | (Kutzing) Levkov | CAD_TWG | UCOB |
| Halamphora bicapitata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora bicapitata | | | | CAD_TWG | CSUSM |
| Halamphora bullatoides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora bullatoides | | | (Hohn and Hellerman) Levkov | CAD_TWG | EcoAnalysts |
| Halamphora cf oligotraphenta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora cf oligotraphenta | | | (Lange-Bertalot) Levkov | CAD_TWG | CSUSM |
| Halamphora cf veneta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora cf veneta | | | (Kutzing) Levkov | CAD_TWG | CSUSM |
| Halamphora coffeaeformis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora coffeaeformis | | | (Agardh) Levkov | CAD_TWG | UCOB |
| Halamphora holsatica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora holsatica | | | (Hustedt) Levkov | CAD_TWG | UCOB |
| Halamphora latecostata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora latecostata | | | Stepanek et Kociolek | CAD_TWG | CSUSM |
| Halamphora montana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora montana | | | (Krasske) Levkov | CAD_TWG | UCOB |
| Halamphora normanii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora normanii | | | (Rabenhorst) Levkov | CAD_TWG | UCOB |
| Halamphora oligotraphenta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora oligotraphenta | | | (Lange-Bertalot) Levkov | CAD_TWG | EcoAnalysts |
| Halamphora perpusilla | | Bacillariophyta | | | Bacillariophyceae | | | Thalassiophysales | | | Catenulaceae | | | | Halamphora | | Halamphora perpusilla | | | (Grunow) Q.-M.You & J.P.Kociolek in Q.-M.You, J.P.Kociolek & W.Wang | CAD_TWG | CSUSM |
| Halamphora punctata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora punctata | | | Stepanek et Kociolek | CAD_TWG | CSUSM |
| Halamphora subtilis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora subtilis | | | Stepanek et Kociolek | CAD_TWG | CSUSM |
| Halamphora subturgida | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora subturgida | | | | CAD_TWG | EcoAnalysts |
| Halamphora tenerrima | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora tenerrima | | | (Aleem et Hustedt) Levkov | CAD_TWG | CSUSM |
| Halamphora thumensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora thumensis | | | (A Mayer) Levkov | CAD_TWG | UCOB |
| Halamphora tumida | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora tumida | | | (Hustedt) Levkov | CAD_TWG | UCOB |
| Halamphora turgida | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora turgida | | | | CAD_TWG | EcoAnalysts |
| Halamphora veneta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Amphipleuraceae | | | | Halamphora | | Halamphora veneta | | | (Kutzing) Levkov | CAD_TWG | UCOB |
| Hannaea | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Ulnariaceae | | | | Hannaea | | | | | | CAD_TWG | UCOB |
| Hannaea arcus | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Ulnariaceae | | | | Hannaea | | Hannaea arcus | | | (Ehrenberg) Patrick | CAD_TWG | UCOB |
| Hantzschia | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Hantzschia | | | | | | CAD_TWG | UCOB |
| Hantzschia abundans | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Hantzschia | | Hantzschia abundans | | | Lange-Bertalot | CAD_TWG | CSUSM |
| Hantzschia amphioxys | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Hantzschia | | Hantzschia amphioxys | | | (Ehrenberg) Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Hantzschia calcifuga | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Hantzschia | | Hantzschia calcifuga | | | E.Reichardt & Lange-Bertalot | CAD_TWG | CSUSM |
| Hantzschia distinctepunctata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Hantzschia | | Hantzschia distinctepunctata | | | (Hustedt) Hustedt | CAD_TWG | EcoAnalysts |
| Hantzschia elongata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Hantzschia | | Hantzschia elongata | | | (Hantzsch) Grunow | CAD_TWG | CSUSM |
| Hantzschia sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Hantzschia | | Hantzschia sp 2 | | | | CAD_TWG | CSUSM |
| Hantzschia virgata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Hantzschia | | Hantzschia virgata | | | (Roper) Grunow | CAD_TWG | NAU |
| Haslea | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Haslea | | | | | | CAD_TWG | CSUSM |
| Haslea duerrenbergiana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Haslea | | Haslea duerrenbergiana | | | (Hustedt) F.A.S.Sterrenburg | CAD_TWG | CSUSM |
| Hippodonta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Hippodonta | | | | | | CAD_TWG | UCOB |
| Hippodonta capitata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Hippodonta | | Hippodonta capitata | | | (Ehrenberg) Lange-Bertalot, Metzeltin & Witkowski | CAD_TWG | UCOB |
| Hippodonta capitata subsp iberoamericana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Hippodonta | | Hippodonta capitata | Hippodonta capitata subsp iberoamericana | | Metzeltin, Lange-Bertalot & Garcia-Rodriguez | CAD_TWG | CSUSM |
| Hippodonta costulata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Hippodonta | | Hippodonta costulata | | | (Grunow) Lange-Bertalot, Metzeltin & Witkowski | CAD_TWG | UCOB |
| Hippodonta hungarica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Hippodonta | | Hippodonta hungarica | | | (Grunow) Lange-Bertalot, Metzeltin & Witkowski | CAD_TWG | UCOB |
| Hippodonta neglecta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Hippodonta | | Hippodonta neglecta | | | Lange-Bertalot, Metzeltin & Witkowski | CAD_TWG | UCOB |
| Hippodonta pseudacceptata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Hippodonta | | Hippodonta pseudacceptata | | | (H. Kobayasi) Lange-Bertalot, Metzeltin & Witkowski | CAD_TWG | CSUSM |
| Hippodonta pumila | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Hippodonta | | Hippodonta pumila | | | Lange-Bertalot, Hofmann & Metzeltin in Metzeltin, | CAD_TWG | UCOB |
| Hippodonta subtilissima | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Hippodonta | | Hippodonta subtilissima | | | Lange-Bertalot, Metzeltin & Witkowski | CAD_TWG | UCOB |
| Humidophila | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Humidophila | | | | | | CAD_TWG | CSUSM |
| Humidophila contenta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Humidophila | | Humidophila contenta | | | (Grunow) Lowe, Kociolek, J.R.Johansen, Van de Vijver, Lange-Bertalot & Kopalova | CAD_TWG | CSUSM |
| Humidophila gallica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Humidophila | | Humidophila gallica | | | (W.Smith) Lowe, Kociolek, Q.You, Q.Wang & Stepanek | CAD_TWG | CSUSM |
| Humidophila perpusilla | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Humidophila | | Humidophila perpusilla | | | (Grunow) Lowe, Kociolek, J.R.Johansen, Van de Vijver, Lange-Bertalot & Kopalova | CAD_TWG | CSUSM |
| Humidophila schmassmannii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Humidophila | | Humidophila schmassmannii | | | (Hustedt) K.Buczko & A.Wojtal | CAD_TWG | CSUSM |
| Humidophila sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Humidophila | | Humidophila sp 1 | | | | CAD_TWG | CSUSM |
| Humidophila templiniana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Humidophila | | Humidophila templiniana | | | (Lange-Bertalot & Rumrich) Lowe, Kociolek, Johansen, Van de Vijver, Lange-Bertalot & Kopalova | CAD_TWG | CSUSM |
| Hydrosera sp 1 | | Bacillariophyta | | | Coscinodiscophyceae | | | Archaegladiopsophycidae | | | Stephanopyxales | | | | Hydrosera | | Hydrosera sp 1 | | | | CAD_TWG | EcoAnalysts |
| Hydrosera whampoensis | | Bacillariophyta | | | Coscinodiscophyceae | | | Archaegladiopsophycidae | | | Stephanopyxales | | | | Hydrosera | | Hydrosera whampoensis | | | (A.F.Schwarz) Deby | CAD_TWG | EcoAnalysts |
| Iconella | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Iconella | | | | | | CAD_TWG | CSUSM |
| Iconella bifrons | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Iconella | | Iconella bifrons | | | (Ehrenberg) Ruck & Nakov | CAD_TWG | CSUSM |
| Iconella biseriata | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Iconella | | Iconella biseriata | | | (Brebisson) Ruck & Nakov | CAD_TWG | CSUSM |
| Iconella cf biseriata | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Iconella | | Iconella cf biseriata | | | (Brebisson) Ruck & Nakov | CAD_TWG | CSUSM |
| Iconella curvula | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Iconella | | Iconella curvula | | | (W.Smith) Ruck & Nakov | CAD_TWG | CSUSM |
| Iconella delicatissima | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Iconella | | Iconella delicatissima | | | (F.W.Lewis) Ruck & Nakov | CAD_TWG | CSUSM |
| Iconella helvetica | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Iconella | | Iconella helvetica | | | (Brun) Ruck & Nakov | CAD_TWG | CSUSM |
| Iconella hibernica | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Iconella | | Iconella hibernica | | | (Ehrenberg) Ruck & Nakov | CAD_TWG | CSUSM |
| Iconella linearis | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Iconella | | Iconella linearis | | | (W.Smith) Ruck & Nakov | CAD_TWG | CSUSM |
| Iconella spiralis | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Iconella | | Iconella spiralis | | | (Kutzing) E.C.Ruck & T.Nakov | CAD_TWG | CSUSM |
| Iconella tenera | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Iconella | | Iconella tenera | | | (W.Gregory) Ruck & Nakov | CAD_TWG | CSUSM |
| Karayevia | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Karayevia | | | | | | CAD_TWG | UCOB |
| Karayevia amoena | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Karayevia | | Karayevia amoena | | | (Hustedt) Bukhtiyarova | CAD_TWG | UCOB |
| Karayevia bottnica | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Karayevia | | Karayevia bottnica | | | (Cleve) Lange-Bertalot in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Karayevia carissima | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Karayevia | | Karayevia carissima | | | | CAD_TWG | EcoAnalysts |
| Karayevia clevei | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Karayevia | | Karayevia clevei | | | (Grunow in Cleve & Grunow) Round & Bukhtiyarova | CAD_TWG | UCOB |
| Karayevia laterostrata | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Karayevia | | Karayevia laterostrata | | | (Hustedt) Bukhtiyarova | CAD_TWG | UCOB |
| Karayevia nitidiformis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Karayevia | | Karayevia nitidiformis | | | (Lange-Bertalot) Bukhtiyarova | CAD_TWG | UCOB |
| Karayevia ploenensis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Karayevia | | Karayevia ploenensis | | | (Hustedt) Bukhtiyarova | CAD_TWG | UCOB |
| Karayevia sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Karayevia | | Karayevia sp 1 | | | | CAD_TWG | CSUSM |
| Karayevia suchlandtii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Karayevia | | Karayevia suchlandtii | | | (Hustedt) Bukhtiyarova | CAD_TWG | UCOB |
| Kobayasiella | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Kobayasiella | | | | | | CAD_TWG | CSUSM |
| Kobayasiella micropunctata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Kobayasiella | | Kobayasiella micropunctata | | | (Germain) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Kobayasiella subtilissima | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Kobayasiella | | Kobayasiella subtilissima | | | (Cleve) Lange-Bertalot | CAD_TWG | UCOB |
| Kolbesia | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Kolbesia | | | | | | CAD_TWG | UCOB |
| Kolbesia gessneri | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Kolbesia | | Kolbesia gessneri | | | (Hustedt) Aboal | CAD_TWG | UCOB |
| Kolbesia kolbei | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Kolbesia | | Kolbesia kolbei | | | Hustedt-Round&Bukhtiyarova ex Fourtanier&Kociolek | CAD_TWG | UCOB |
| Krasskella | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Krasskella | | | | | | CAD_TWG | UCOB |
| Krasskella kriegeriana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Krasskella | | Krasskella kriegeriana | | | (Krasske) Ross and Sims | CAD_TWG | CSUSM |
| Lemnicola | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Lemnicola | | | | | | CAD_TWG | UCOB |
| Lemnicola hungarica | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Lemnicola | | Lemnicola hungarica | | | (Grunow) Round & Basson | CAD_TWG | UCOB |
| Lindavia | | Bacillariophyta | | | Coscinodiscophyceae | | | Coscinodiscales | | | Coscinodiscaceae | | | | Lindavia | | | | | | CAD_TWG | CSUSM |
| Lindavia bodanica | | Bacillariophyta | | | Coscinodiscophyceae | | | Coscinodiscales | | | Coscinodiscaceae | | | | Lindavia | | Lindavia bodanica | | | (Eulenstein ex Grunow) T.Nakov, Guillory, Julius, Theriot & Alverson | CAD_TWG | CSUSM |
| Lindavia comensis | | Bacillariophyta | | | Coscinodiscophyceae | | | Coscinodiscales | | | Coscinodiscaceae | | | | Lindavia | | Lindavia comensis | | | (Grunow) T.Nakov, W. X. Guillory, M. L. Julius, E. C. Theriot & A. J. Alverson | CAD_TWG | CSUSM |
| Lindavia comta | | Bacillariophyta | | | Coscinodiscophyceae | | | Coscinodiscales | | | Coscinodiscaceae | | | | Lindavia | | Lindavia comta | | | (Kutzing) Nakov, Gullory, Julius, Theriot & Alverson | CAD_TWG | CSUSM |
| Lindavia intermedia | | Bacillariophyta | | | Coscinodiscophyceae | | | Coscinodiscales | | | Coscinodiscaceae | | | | Lindavia | | Lindavia intermedia | | | (Manguin ex Kociolek & Reviers) T. Nakov, W. X. Guillory, M.L. Julius | CAD_TWG | EcoAnalysts |
| Lindavia michiganiana | | Bacillariophyta | | | Coscinodiscophyceae | | | Coscinodiscales | | | Coscinodiscaceae | | | | Lindavia | | Lindavia michiganiana | | | (Skvortzow) Nakov, Guillory, Julius, Theriot & Alverson | CAD_TWG | CSUSM |
| Lindavia ocellata | | Bacillariophyta | | | Coscinodiscophyceae | | | Coscinodiscales | | | Coscinodiscaceae | | | | Lindavia | | Lindavia ocellata | | | (Pantocsek) T.Nakov, W. X. Guillory, M. L. Julius, E. C. Theriot & A. J. Alverson | CAD_TWG | CSUSM |
| Lindavia radiosa | | Bacillariophyta | | | Coscinodiscophyceae | | | Coscinodiscales | | | Coscinodiscaceae | | | | Lindavia | | Lindavia radiosa | | | (Grunow) De Toni & Forti | CAD_TWG | CSUSM |
| Lindavia rossii | | Bacillariophyta | | | Coscinodiscophyceae | | | Coscinodiscales | | | Coscinodiscaceae | | | | Lindavia | | Lindavia rossii | | | (Hakansson) T.Nakov, W. X. Guillory, M. L. Julius, E. C. Theriot & A. J. Alverson | CAD_TWG | CSUSM |
| Lindavia tripartita | | Bacillariophyta | | | Coscinodiscophyceae | | | Coscinodiscales | | | Coscinodiscaceae | | | | Lindavia | | Lindavia tripartita | | | (Hakansson) T.Nakov, W. X. Guillory, M. L. Julius, E. C. Theriot & A. J. Alverson | CAD_TWG | CSUSM |
| Luticola | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | | | | | CAD_TWG | UCOB |
| Luticola acidoclinata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola acidoclinata | | | Lange-Bertalot | CAD_TWG | CSUSM |
| Luticola camopiensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola camopiensis | | | Levkov, Metzeltin & A.Pavlov | CAD_TWG | CSUSM |
| Luticola cf nivalis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola cf nivalis | | | (Ehrenberg) Mann in Round, Crawford & Mann | CAD_TWG | CSUSM |
| Luticola charlatii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola charlatii | | | (M.Peragallo) Metzeltin & Lange-Bertalot | CAD_TWG | CSUSM |
| Luticola cohnii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola cohnii | | | (Hilse) Bukhtiyarova | CAD_TWG | UCOB |
| Luticola dismutica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola dismutica | | | (Hustedt) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Luticola goeppertiana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola goeppertiana | | | (Bleisch) D.G.Mann ex J.Rarick, S.Wu, S.S.Lee & Edlund | CAD_TWG | UCOB |
| Luticola heufleriana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola heufleriana | | | (Grunow) Mann | CAD_TWG | UCOB |
| Luticola hustedtii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola hustedtii | | | Levkov, Metzeltin & A.Pavlov | CAD_TWG | CSUSM |
| Luticola minor | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola minor | | | (R.M.Patrick) A.Mayama | CAD_TWG | CSUSM |
| Luticola mutica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola mutica | | | (Kutzing) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Luticola muticoides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola muticoides | | | (Hustedt) D.G.Mann | CAD_TWG | NAU |
| Luticola muticopsis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola muticopsis | | | (Van Heurck) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Luticola nivalis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola nivalis | | | (Ehrenberg) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Luticola saprophila | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola saprophila | | | | CAD_TWG | EcoAnalysts |
| Luticola saxophila | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola saxophila | | | (Bock ex Hustedt) Mann in Round, Crawford & Mann i | CAD_TWG | UCOB |
| Luticola sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola sp 1 | | | | CAD_TWG | CSUSM |
| Luticola sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola sp 2 | | | | CAD_TWG | CSUSM |
| Luticola sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola sp 3 | | | | CAD_TWG | CSUSM |
| Luticola stigma | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola stigma | | | (R.M.Patrick) J.R.Johans. | CAD_TWG | CSUSM |
| Luticola undulata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola undulata | | | (Hilse) D. G. Mann | CAD_TWG | CSUSM |
| Luticola ventriconfusa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola ventriconfusa | | | | CAD_TWG | EcoAnalysts |
| Luticola ventricosa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Diadesmidaceae | | | | Luticola | | Luticola ventricosa | | | (Kutzing) Mann | CAD_TWG | EcoAnalysts |
| Martyana | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Martyana | | | | | | CAD_TWG | UCOB |
| Martyana atomus | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Martyana | | Martyana atomus | | | (Hustedt) Snoeijs in Snoeijs, Hallfors & Leskinen | CAD_TWG | UCOB |
| Mastogloia | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Mastogloiaceae | | | | Mastogloia | | | | | | CAD_TWG | UCOB |
| Mastogloia albertii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Mastogloiaceae | | | | Mastogloia | | Mastogloia albertii | | | A. Pavlov, E.Jovanovska, C.E.Wetzel, L.Ector & Z.Levkov | CAD_TWG | CSUSM |
| Mastogloia calcarea | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Mastogloiaceae | | | | Mastogloia | | Mastogloia calcarea | | | S.S.Lee, E.E.Gaiser, B.Van de Vijver, M.B.Edlund & S.A.Spaulding | CAD_TWG | CSUSM |
| Mastogloia elliptica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Mastogloiaceae | | | | Mastogloia | | Mastogloia elliptica | | | (Agardh) Cleve in Schmidt et al | CAD_TWG | UCOB |
| Mastogloia grevillei | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Mastogloiaceae | | | | Mastogloia | | Mastogloia grevillei | | | W Smith in Gregory | CAD_TWG | UCOB |
| Mastogloia lacustris | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Mastogloiaceae | | | | Mastogloia | | Mastogloia lacustris | | | (Grunow) Grunow | CAD_TWG | CSUSM |
| Mastogloia pseudosmithii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Mastogloiaceae | | | | Mastogloia | | Mastogloia pseudosmithii | | | S.S.Lee, E.E.Gaiser, B.Van de Vijver, M.B.Edlund & Spaulding | CAD_TWG | CSUSM |
| Mastogloia smithii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Mastogloiaceae | | | | Mastogloia | | Mastogloia smithii | | | Thwaites in lit ex W Smith | CAD_TWG | UCOB |
| Mayamaea | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | | | | | CAD_TWG | UCOB |
| Mayamaea agrestis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | Mayamaea agrestis | | | (Hustedt) Lange-Bertalot | CAD_TWG | UCOB |
| Mayamaea atomus | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | Mayamaea atomus | | | (Kutzing) Lange-Bertalot | CAD_TWG | UCOB |
| Mayamaea cahabaensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | Mayamaea cahabaensis | | | | CAD_TWG | CSUSM |
| Mayamaea disjuncta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | Mayamaea disjuncta | | | (Hustedt) J.Y. Li & Y.Z.Qi | CAD_TWG | CSUSM |
| Mayamaea excelsa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | Mayamaea excelsa | | | | CAD_TWG | EcoAnalysts |
| Mayamaea fossalis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | Mayamaea fossalis | | | (Krasske) Lange-Bertalot | CAD_TWG | UCOB |
| Mayamaea fossalis var obsidialis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | Mayamaea fossalis | | Mayamaea fossalis var obsidialis | (Hustedt) Lange-Bertalot | CAD_TWG | UCOB |
| Mayamaea fossaloides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | Mayamaea fossaloides | | | (Hustedt) Lange-Bertalot | CAD_TWG | CSUSM |
| Mayamaea ingenua | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | Mayamaea ingenua | | | (Hustedt) Lange-Bertalot & G.Hofmann | CAD_TWG | CSUSM |
| Mayamaea muraliformis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | Mayamaea muraliformis | | | (Hustedt) Lange-Bertalot | CAD_TWG | UCOB |
| Mayamaea permitis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | Mayamaea permitis | | | (Hustedt) Bruder & Medlin | CAD_TWG | UCOB |
| Mayamaea recondita | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | Mayamaea recondita | | | | CAD_TWG | EcoAnalysts |
| Mayamaea sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | Mayamaea sp 1 | | | | CAD_TWG | EcoAnalysts |
| Mayamaea sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Mayamaea | | Mayamaea sp 2 | | | | CAD_TWG | CSUSM |
| Melosira | | Bacillariophyta | | | Coscinodiscophyceae | | | Melosirales | | | Melosiraceae | | | | Melosira | | | | | | CAD_TWG | CSUSM |
| Melosira undulata | | Bacillariophyta | | | Coscinodiscophyceae | | | Melosirales | | | Melosiraceae | | | | Melosira | | Melosira undulata | | | (Hustedt) Bruder and Medlin | CAD_TWG | EcoAnalysts |
| Melosira varians | | Bacillariophyta | | | Coscinodiscophyceae | | | Melosirales | | | Melosiraceae | | | | Melosira | | Melosira varians | | | Agardh | CAD_TWG | UCOB |
| Meridion | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Meridion | | | | | | CAD_TWG | UCOB |
| Meridion circulare | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Meridion | | Meridion circulare | | | (Greville) Agardh | CAD_TWG | UCOB |
| Meridion constrictum | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Meridion | | Meridion constrictum | | | Ralfs | CAD_TWG | CSUSM |
| Meridion lineare | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Meridion | | Meridion lineare | | | Williams in Kociolek & Lowe | CAD_TWG | UCOB |
| Microcostatus | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Microcostatus | | | | | | CAD_TWG | UCOB |
| Microcostatus krasskei | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Microcostatus | | Microcostatus krasskei | | | (Hustedt) Johansen & Sray | CAD_TWG | UCOB |
| Microcostatus naumannii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Microcostatus | | Microcostatus naumannii | | | (Hustedt) Lange-Bertalot | CAD_TWG | CSUSM |
| Muelleria | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Muelleria | | | | | | CAD_TWG | UCOB |
| Muelleria cf gibbula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Muelleria | | Muelleria cf gibbula | | | (Cleve) Spaulding & Stoermer | CAD_TWG | NAU |
| Muelleria gibbula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Muelleria | | Muelleria gibbula | | | (Cleve) Spaulding & Stoermer | CAD_TWG | UCOB |
| Muelleria terrestris | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Muelleria | | Muelleria terrestris | | | (Petersen) Spaulding & Stoermer | CAD_TWG | UCOB |
| Nanofrustulum | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Nanofrustulum | | | | | | CAD_TWG | CSUSM |
| Nanofrustulum trainorii | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Nanofrustulum | | Nanofrustulum trainorii | | | (E.A.Morales) E.A.Morales | CAD_TWG | CSUSM |
| Navicula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | | | | | CAD_TWG | UCOB |
| Navicula alineae | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula alineae | | | | CAD_TWG | EcoAnalysts |
| Navicula amphiceropsis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula amphiceropsis | | | Lange-Bertalot & Rumrich | CAD_TWG | UCOB |
| Navicula angusta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula angusta | | | Grunow | CAD_TWG | UCOB |
| Navicula antonii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula antonii | | | Lange-Bertalot:Rumrich,Lange-Bertalot,Rumrich | CAD_TWG | UCOB |
| Navicula aquaedurae | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula aquaedurae | | | Lange-Bertalot | CAD_TWG | CSUSM |
| Navicula arctotenelloides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula arctotenelloides | | | Lange-Bertalot,Metzeltin:Lange-Bertalot,Kulbs,Laus | CAD_TWG | UCOB |
| Navicula arenaria | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula arenaria | | | Donkin | CAD_TWG | UCOB |
| Navicula associata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula associata | | | Lange-Bertalot & Hofmann in Lange-Bertalot | CAD_TWG | UCOB |
| Navicula aurora | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula aurora | | | Sovereign | CAD_TWG | UCOB |
| Navicula canalis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula canalis | | | Patrick | CAD_TWG | UCOB |
| Navicula capitatoradiata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula capitatoradiata | | | Germain | CAD_TWG | UCOB |
| Navicula capitellata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula capitellata | | | Skvortzow | CAD_TWG | UCOB |
| Navicula cari | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cari | | | Ehrenberg | CAD_TWG | UCOB |
| Navicula caterva | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula caterva | | | Hohn & Hellerman | CAD_TWG | UCOB |
| Navicula cf absoluta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf absoluta | | | Hustedt | CAD_TWG | CSUSM |
| Navicula cf angusta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf angusta | | | Grunow | CAD_TWG | CSUSM |
| Navicula cf antonii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf antonii | | | Lange-Bertalot:Rumrich,Lange-Bertalot,Rumrich | CAD_TWG | CSUSM |
| Navicula cf capitatoradiata SWAMP KB | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf capitatoradiata SWAMP KB | | | Germain | CAD_TWG | UCOB |
| Navicula cf cari | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf cari | | | Ehrenberg | CAD_TWG | CSUSM |
| Navicula cf caterva | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf caterva | | | | CAD_TWG | EcoAnalysts |
| Navicula cf cincta SWAMP JPK | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf cincta SWAMP JPK | | | (Ehrenberg) Ralfs in Pritchard | CAD_TWG | UCOB |
| Navicula cf concentrica SWAMP BSL | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf concentrica SWAMP BSL | | | Carter & Bailey-Watts | CAD_TWG | UCOB |
| Navicula cf cryptocephala SCCWRP MCB | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf cryptocephala SCCWRP MCB | | | Kutzing | CAD_TWG | UCOB |
| Navicula cf cryptotenella | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf cryptotenella | | | | CAD_TWG | EcoAnalysts |
| Navicula cf cryptotenella SWAMP JPK | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf cryptotenella SWAMP JPK | | | Lange-Bertalot in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Navicula cf digitulus | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf digitulus | | | Hustedt | CAD_TWG | NAU |
| Navicula cf erifuga | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf erifuga | | | Lange-Bertalot in Krammer & Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Navicula cf exilis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf exilis | | | Kutzing | CAD_TWG | CSUSM |
| Navicula cf germainii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf germainii | | | Wallace | CAD_TWG | EcoAnalysts |
| Navicula cf globulifera SWAMP KB | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf globulifera SWAMP KB | | | Hustedt | CAD_TWG | UCOB |
| Navicula cf graciloides SWAMP JPK | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf graciloides SWAMP JPK | | | A Mayer in Hustedt | CAD_TWG | UCOB |
| Navicula cf gregaria SWAMP JPK | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf gregaria SWAMP JPK | | | Donkin | CAD_TWG | UCOB |
| Navicula cf harmoniae | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf harmoniae | | | Bahls | CAD_TWG | EcoAnalysts |
| Navicula cf incertata SWAMP JPK | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf incertata SWAMP JPK | | | Lange-Bertalot in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Navicula cf kotschyi | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf kotschyi | | | Grunow | CAD_TWG | CSUSM |
| Navicula cf libonensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf libonensis | | | Schoeman | CAD_TWG | CSUSM |
| Navicula cf lundii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf lundii | | | | CAD_TWG | CSUSM |
| Navicula cf normaloides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf normaloides | | | Cholnoky | CAD_TWG | EcoAnalysts |
| Navicula cf notha | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf notha | | | Wallace | CAD_TWG | CSUSM |
| Navicula cf pseudotenelloides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf pseudotenelloides | | | Krasske | CAD_TWG | CSUSM |
| Navicula cf rostellata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf rostellata | | | Kutzing | CAD_TWG | EcoAnalysts |
| Navicula cf salinicola | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf salinicola | | | Hustedt | CAD_TWG | CSUSM |
| Navicula cf splendicula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf splendicula | | | VanLandingham | CAD_TWG | NAU |
| Navicula cf striolata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula striolata | | | Grunow; Lange-Bertalot:Krammer,Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Navicula cf subrotundata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf subrotundata | | | Hustedt | CAD_TWG | CSUSM |
| Navicula cf tenelloides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf tenelloides | | | Hustedt | CAD_TWG | CSUSM |
| Navicula cf veneta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf veneta | | | Kutzing | CAD_TWG | CSUSM |
| Navicula cf vilaplanii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf vilaplanii | | | | CAD_TWG | EcoAnalysts |
| Navicula cf wildii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cf wildii | | | | CAD_TWG | CSUSM |
| Navicula chiarae | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula chiarae | | | Lange-Bert. & S.I.Genkal | CAD_TWG | CSUSM |
| Navicula cincta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cincta | | | (Ehrenberg) Ralfs in Pritchard | CAD_TWG | UCOB |
| Navicula cincta var minuta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cincta | | Navicula cincta var minuta | Skvortzov | CAD_TWG | EcoAnalysts |
| Navicula convexa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula convexa | | | W Smith | CAD_TWG | UCOB |
| Navicula cryptocephala | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cryptocephala | | | Kutzing | CAD_TWG | UCOB |
| Navicula cryptocephaloides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cryptocephaloides | | | Hustedt | CAD_TWG | UCOB |
| Navicula cryptofallax | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cryptofallax | | | Lange-Bertalot & G.Hofmann 1993 | CAD_TWG | CSUSM |
| Navicula cryptotenella | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cryptotenella | | | Lange-Bertalot in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Navicula cryptotenelloides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula cryptotenelloides | | | Lange-Bertalot | CAD_TWG | UCOB |
| Navicula densilineolata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula densilineolata | | | (Lange-Bertalot) Lange-Bertalot | CAD_TWG | UCOB |
| Navicula digitoradiata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula digitoradiata | | | (Gregory) Ralfs in Pritchard | CAD_TWG | UCOB |
| Navicula eidrigiana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula eidrigiana | | | Carter | CAD_TWG | UCOB |
| Navicula erifuga | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula erifuga | | | Lange-Bertalot in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Navicula escambia | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula escambia | | | (Patrick) Metzeltin & Lange-Bertalot | CAD_TWG | UCOB |
| Navicula expecta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula expecta | | | VanLandingham | CAD_TWG | UCOB |
| Navicula flatheadensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula flatheadensis | | | L.L.Bahls | CAD_TWG | CSUSM |
| Navicula genovefae | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula genovefae | | | Fusey | CAD_TWG | CSUSM |
| Navicula gerloffii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula gerloffii | | | Schimanski | CAD_TWG | UCOB |
| Navicula germainii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula germainii | | | Wallace | CAD_TWG | UCOB |
| Navicula germanopolonica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula germanopolonica | | | Witkowski & Lange-Bertalot | CAD_TWG | CSUSM |
| Navicula globulifera | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula globulifera | | | Hustedt | CAD_TWG | UCOB |
| Navicula goersii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula goersii | | | Bahls | CAD_TWG | UCOB |
| Navicula gottlandica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula gottlandica | | | Grunow in Van Heurck | CAD_TWG | UCOB |
| Navicula gregaria | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula gregaria | | | Donkin | CAD_TWG | UCOB |
| Navicula hasta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula hasta | | | Pantocsek | CAD_TWG | UCOB |
| Navicula hintzii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula hintzii | | | Lange-Bert. | CAD_TWG | CSUSM |
| Navicula johncarteri | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula johncarteri | | | D.M.Williams | CAD_TWG | CSUSM |
| Navicula kotschyi | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula kotschyi | | | Grunow | CAD_TWG | UCOB |
| Navicula lanceolata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula lanceolata | | | (C. Agardh) Ehrenberg | CAD_TWG | UCOB |
| Navicula laterostrata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula laterostrata | | | Hustedt | CAD_TWG | UCOB |
| Navicula leptostriata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula leptostriata | | | JOrgensen | CAD_TWG | UCOB |
| Navicula libonensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula libonensis | | | Schoeman | CAD_TWG | UCOB |
| Navicula longa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula longa | | | (Gregory) Ralfs in Pritchard | CAD_TWG | UCOB |
| Navicula longicephala | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula longicephala | | | Hustedt 1944 | CAD_TWG | EcoAnalysts |
| Navicula lundii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula lundii | | | Reichardt | CAD_TWG | UCOB |
| Navicula margalithii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula margalithii | | | Lange-Bertalot in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Navicula menisculus | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula menisculus | | | Schumann | CAD_TWG | UCOB |
| Navicula meniscus | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula meniscus | | | Schumann | CAD_TWG | UCOB |
| Navicula microcari | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula microcari | | | Lange-Bertalot | CAD_TWG | UCOB |
| Navicula microdigitoradiata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula microdigitoradiata | | | Lange-Bertalot | CAD_TWG | UCOB |
| Navicula modica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula modica | | | Hustedt | CAD_TWG | UCOB |
| Navicula moskalii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula moskalii | | | Metzeltin, Witkowski & Lange-Bertalot | CAD_TWG | CSUSM |
| Navicula normaloides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula normaloides | | | Cholnoky | CAD_TWG | UCOB |
| Navicula notha | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula notha | | | Wallace | CAD_TWG | UCOB |
| Navicula novaesiberica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula novaesiberica | | | Lange-Bertalot | CAD_TWG | UCOB |
| Navicula oblonga | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula oblonga | | | (Kutzing) Kutzing | CAD_TWG | UCOB |
| Navicula oppugnata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula oppugnata | | | Hustedt | CAD_TWG | UCOB |
| Navicula peregrina | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula peregrina | | | (Ehrenberg) Kutzing | CAD_TWG | UCOB |
| Navicula perminuta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula perminuta | | | Grunow in Van Heurck | CAD_TWG | UCOB |
| Navicula phyllepta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula phyllepta | | | Kutzing | CAD_TWG | UCOB |
| Navicula phylleptosoma | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula phylleptosoma | | | Lange-Bertalot in Lange-Bertalot & Genkal | CAD_TWG | UCOB |
| Navicula praeterita | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula praeterita | | | Hustedt | CAD_TWG | UCOB |
| Navicula pseudolanceolata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula pseudolanceolata | | | Lange-Bertalot | CAD_TWG | UCOB |
| Navicula pseudotenelloides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula pseudotenelloides | | | | CAD_TWG | EcoAnalysts |
| Navicula radiosa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula radiosa | | | Kutzing | CAD_TWG | UCOB |
| Navicula radiosafallax | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula radiosafallax | | | Lange-Bertalot | CAD_TWG | UCOB |
| Navicula radiosiola | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula radiosiola | | | | CAD_TWG | CSUSM |
| Navicula recens | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula recens | | | (Lange-Bertalot) Lange-Bertalot | CAD_TWG | UCOB |
| Navicula reichardtiana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula reichardtiana | | | Lange-Bertalot in Lange-Bertalot & Krammer | CAD_TWG | UCOB |
| Navicula reinhardtii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula reinhardtii | | | (Grunow) Grunow | CAD_TWG | UCOB |
| Navicula rhynchocephala | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula rhynchocephala | | | Kutzing | CAD_TWG | UCOB |
| Navicula rhynchotella | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula rhynchotella | | | Lange-Bertalot | CAD_TWG | UCOB |
| Navicula ricardae | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula ricardae | | | Lange-Bertalot | CAD_TWG | CSUSM |
| Navicula riediana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula riediana | | | Lange-Bertalot & Rumrich | CAD_TWG | CSUSM |
| Navicula rostellata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula rostellata | | | Kutzing | CAD_TWG | UCOB |
| Navicula salinarum | | Heterokontophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula salinarum | | | Grunow | CAD_TWG | UCOB |
| Navicula salinicola | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula salinicola | | | Hustedt | CAD_TWG | UCOB |
| Navicula sanctaecrucis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sanctaecrucis | | | Ostrup | CAD_TWG | EcoAnalysts |
| Navicula schroeteri | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula schroeteri | | | Meister | CAD_TWG | UCOB |
| Navicula schweigeri | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula schweigeri | | | Bahls | CAD_TWG | EcoAnalysts |
| Navicula sovereignii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sovereignii | | | Bahls | CAD_TWG | EcoAnalysts |
| Navicula sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 1 | | | | CAD_TWG | EcoAnalysts |
| Navicula sp 10 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 10 | | | | CAD_TWG | CSUSM |
| Navicula sp 11 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 11 | | | | CAD_TWG | CSUSM |
| Navicula sp 12 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 12 | | | | CAD_TWG | CSUSM |
| Navicula sp 13 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 13 | | | | CAD_TWG | CSUSM |
| Navicula sp 14 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 14 | | | | CAD_TWG | CSUSM |
| Navicula sp 15 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 15 | | | | CAD_TWG | CSUSM |
| Navicula sp 16 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 16 | | | | CAD_TWG | CSUSM |
| Navicula sp 17 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 17 | | | | CAD_TWG | CSUSM |
| Navicula sp 18 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 18 | | | | CAD_TWG | EcoAnalysts |
| Navicula sp 19 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 19 | | | | CAD_TWG | CSUSM |
| Navicula sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 2 | | | | CAD_TWG | EcoAnalysts |
| Navicula sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 3 | | | | CAD_TWG | EcoAnalysts |
| Navicula sp 4 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 4 | | | | CAD_TWG | EcoAnalysts |
| Navicula sp 5 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 5 | | | | CAD_TWG | EcoAnalysts |
| Navicula sp 6 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 6 | | | | CAD_TWG | EcoAnalysts |
| Navicula sp 7 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 7 | | | | CAD_TWG | EcoAnalysts |
| Navicula sp 8 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 8 | | | | CAD_TWG | EcoAnalysts |
| Navicula sp 9 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula sp 9 | | | | CAD_TWG | EcoAnalysts |
| Navicula splendicula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula splendicula | | | VanLandingham | CAD_TWG | UCOB |
| Navicula stankovici | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula stankovici | | | Hustedt | CAD_TWG | UCOB |
| Navicula striolata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula striolata | | | (Grunow) Lange-Bertalot | CAD_TWG | UCOB |
| Navicula subadnata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula subadnata | | | Hustedt | CAD_TWG | CSUSM |
| Navicula subalpina | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula subalpina | | | E.Reichardt | CAD_TWG | CSUSM |
| Navicula subinflatoides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula subinflatoides | | | Hustedt | CAD_TWG | UCOB |
| Navicula subrhynchocephala | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula subrhynchocephala | | | Hustedt | CAD_TWG | UCOB |
| Navicula subrostellata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula subrostellata | | | Hustedt | CAD_TWG | UCOB |
| Navicula supergregaria | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula supergregaria | | | Rumrich & Lange-Bert. | CAD_TWG | CSUSM |
| Navicula symmetrica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula symmetrica | | | Patrick | CAD_TWG | UCOB |
| Navicula tenelloides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula tenelloides | | | Hustedt | CAD_TWG | UCOB |
| Navicula tenuipunctata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula tenuipunctata | | | Hustedt | CAD_TWG | NAU |
| Navicula texana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula texana | | | R.M.Patrick | CAD_TWG | CSUSM |
| Navicula trilatera | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula trilatera | | | Bahls 2013 | CAD_TWG | EcoAnalysts |
| Navicula tripunctata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula tripunctata | | | (Muller) Bory | CAD_TWG | UCOB |
| Navicula triundulata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula triundulata | | | Grunow | CAD_TWG | UCOB |
| Navicula trivialis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula trivialis | | | Lange-Bertalot | CAD_TWG | UCOB |
| Navicula upsaliensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula upsaliensis | | | (Grunow in Van Heurck) M Peragallo | CAD_TWG | UCOB |
| Navicula vandamii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula vandamii | | | Schoeman & Archibald | CAD_TWG | CSUSM |
| Navicula vandamii var mertensiae | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula vandamii | | Navicula vandamii var mertensiae | Lange-Betralot | CAD_TWG | CSUSM |
| Navicula vaneei | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula vaneei | | | Lange-Bertalot | CAD_TWG | CSUSM |
| Navicula veneta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula veneta | | | Kutzing | CAD_TWG | UCOB |
| Navicula vilaplanii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula vilaplanii | | | (Lange-Bertalot & Sabater) Lange-Bertalot & Sabater | CAD_TWG | UCOB |
| Navicula viridula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula viridula | | | (Kutzing) Ehrenberg | CAD_TWG | UCOB |
| Navicula viridula var linearis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula viridula | | Navicula viridula var linearis | Hustedt | CAD_TWG | UCOB |
| Navicula viridulacalcis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula viridulacalcis | | | Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Navicula viridulacalcis var neomundana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula viridulacalcis | | Navicula viridulacalcis var neomundana | Lange-Bertalot and Rumrich | CAD_TWG | EcoAnalysts |
| Navicula vulpina | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula vulpina | | | Kutzing | CAD_TWG | UCOB |
| Navicula walkeri | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula walkeri | | | Sovereign | CAD_TWG | UCOB |
| Navicula weberi | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula weberi | | | Bahls | CAD_TWG | EcoAnalysts |
| Navicula wildii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicula | | Navicula wildii | | | Lange-Bertalot | CAD_TWG | UCOB |
| Naviculaceae | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | | | | | | | CAD_TWG | UCOB |
| Naviculadicta geisslerae | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Naviculadicta | | Naviculadicta geisslerae | | | | CAD_TWG | EcoAnalysts |
| Naviculales | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | | | | | | | | | | | CAD_TWG | UCOB |
| Navicymbula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicymbula | | | | | | CAD_TWG | CSUSM |
| Navicymbula pusilla | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Navicymbula | | Navicymbula pusilla | | | (Grunow) Krammer | CAD_TWG | CSUSM |
| Navigiolum | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Navigiolum | | | | | | CAD_TWG | CSUSM |
| Navigiolum cf ricula | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Navigiolum | | Navigiolum cf ricula | | | (M.H.Hohn & Hellerman) C.E.Wetzel & Ector | CAD_TWG | CSUSM |
| Navigiolum ricula | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Navigiolum | | Navigiolum ricula | | | (M.H.Hohn & Hellerman) C.E.Wetzel & Ector | CAD_TWG | CSUSM |
| Neidiomorpha | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidiomorpha | | | | | | CAD_TWG | CSUSM |
| Neidiomorpha binodiformis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidiomorpha | | Neidiomorpha binodiformis | | | Krammer in Krammer & Lange-Bertalot | CAD_TWG | CSUSM |
| Neidiomorpha binodis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidiomorpha | | Neidiomorpha binodis | | | (Ehrenberg) M.Cantonati, Lange-Bertalot & N.Angeli | CAD_TWG | CSUSM |
| Neidiopsis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidiopsis | | | | | | CAD_TWG | CSUSM |
| Neidiopsis levanderi | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidiopsis | | Neidiopsis levanderi | | | (Hustedt) Lange-Bertalot & Metzeltin | CAD_TWG | UCOB |
| Neidium | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | | | | | CAD_TWG | UCOB |
| Neidium affine | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | Neidium affine | | | (Ehrenberg) Pfitzer | CAD_TWG | UCOB |
| Neidium alpinum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | Neidium alpinum | | | Hustedt | CAD_TWG | UCOB |
| Neidium ampliatum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | Neidium ampliatum | | | (Ehrenberg) Krammer in Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Neidium apiculatum var constrictum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | Neidium apiculatum | | Neidium apiculatum var constrictum | Reimer | CAD_TWG | UCOB |
| Neidium bisulcatum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | Neidium bisulcatum | | | (Lagerstedt) Cleve | CAD_TWG | UCOB |
| Neidium cf dubium | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | Neidium cf dubium | | | (Ehrenberg) Cleve | CAD_TWG | EcoAnalysts |
| Neidium dubium | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | Neidium dubium | | | (Ehrenberg) Cleve | CAD_TWG | UCOB |
| Neidium hercynicum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | Neidium hercynicum | | | Mayer | CAD_TWG | UCOB |
| Neidium iridis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | Neidium iridis | | | (Ehrenberg) Cleve | CAD_TWG | UCOB |
| Neidium longiceps | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | Neidium longiceps | | | (W.Gregory) R.Ross | CAD_TWG | CSUSM |
| Neidium productum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | Neidium productum | | | (W. Smith) Cleve | CAD_TWG | UCOB |
| Neidium septentrionalis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | Neidium septentrionalis | | | Cleve-Euler | CAD_TWG | UCOB |
| Neidium stoermeri | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | Neidium stoermeri | | | Thomas & Kociolek | CAD_TWG | UCOB |
| Neidium tenuissimum | | Heterokontophyta | | | Bacillariophyceae | | | Naviculales | | | Neidiaceae | | | | Neidium | | Neidium tenuissimum | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | | | | | CAD_TWG | UCOB |
| Nitzschia acicularioides | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia acicularioides | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia acicularis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia acicularis | | | (Kutzing) Smith | CAD_TWG | UCOB |
| Nitzschia acidoclinata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia acidoclinata | | | Lange-Bertalot | CAD_TWG | UCOB |
| Nitzschia aequorea | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia aequorea | | | Hustedt | CAD_TWG | EcoAnalysts |
| Nitzschia agnita | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia agnita | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia alpina | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia alpina | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia alpinobacillum | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia alpinobacillum | | | Lange-Bertalot | CAD_TWG | UCOB |
| Nitzschia amphibia | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia amphibia | | | Grunow | CAD_TWG | UCOB |
| Nitzschia amphibia f frauenfeldii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia amphibia | | Nitzschia amphibia f frauenfeldii | (Grunow) Lange-Bertalot | CAD_TWG | UCOB |
| Nitzschia amphibioides | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia amphibioides | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia amplectens | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia amplectens | | | Hustedt | CAD_TWG | EcoAnalysts |
| Nitzschia archibaldii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia archibaldii | | | Lange-Bertalot | CAD_TWG | UCOB |
| Nitzschia aurariae | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia aurariae | | | Cholnoky | CAD_TWG | UCOB |
| Nitzschia austriaca | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia austriaca | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia bacilliformis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia bacilliformis | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia bacillum | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia bacillum | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia balcanica | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia balcanica | | | Hust. | CAD_TWG | CSUSM |
| Nitzschia behrei | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia behrei | | | Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Nitzschia bita | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia bita | | | Hohn and Hellerman | CAD_TWG | EcoAnalysts |
| Nitzschia bremensis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia bremensis | | | Hustedt | CAD_TWG | EcoAnalysts |
| Nitzschia brevissima | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia brevissima | | | Grunow in Van Heurck | CAD_TWG | UCOB |
| Nitzschia bryophila | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia bryophila | | | (Hustedt) Hustedt | CAD_TWG | UCOB |
| Nitzschia bulnheimiana | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia bulnheimiana | | | (Rabenhorst) HL Smith | CAD_TWG | UCOB |
| Nitzschia calica | | Heterokontophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia calica | | | Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Nitzschia capitellata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia capitellata | | | Hustedt in Schmidt et al | CAD_TWG | UCOB |
| Nitzschia cf acicularis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf acicularis | | | (Kutzing) Smith | CAD_TWG | UCOB |
| Nitzschia cf acidoclinata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf acidoclinata | | | Lange-Bertalot | CAD_TWG | CSUSM |
| Nitzschia cf archibaldii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf archibaldii | | | Lange-Bertalot | CAD_TWG | UCOB |
| Nitzschia cf bacillum | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf bacillum | | | Hustedt | CAD_TWG | CSUSM |
| Nitzschia cf capitellata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf capitellata | | | Hustedt in Schmidt et al | CAD_TWG | UCOB |
| Nitzschia cf desertorum | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf desertorum | | | | CAD_TWG | EcoAnalysts |
| Nitzschia cf fonticola | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf fonticola | | | (Grunow) Grunow in Van Heurck | CAD_TWG | UCOB |
| Nitzschia cf fossilis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf fossilis | | | (Grunow) Grunow | CAD_TWG | EcoAnalysts |
| Nitzschia cf frustulum | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf frustulum | | | (Kutzing) Grunow in Cleve & Grunow | CAD_TWG | CSUSM |
| Nitzschia cf gracilis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf gracilis | | | Hantzsch | CAD_TWG | EcoAnalysts |
| Nitzschia cf hantzschiana | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf hantzschiana | | | Rabenhorst | CAD_TWG | CSUSM |
| Nitzschia cf inconspicua | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf inconspicua | | | Grunow | CAD_TWG | CSUSM |
| Nitzschia cf lacuum SCCWRP MCB | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf lacuum SCCWRP MCB | | | Lange-Bertalot | CAD_TWG | UCOB |
| Nitzschia cf leistikowii DWB | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf leistikowii DWB | | | Lange-Bertalot | CAD_TWG | UCOB |
| Nitzschia cf liebethruthii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf liebethruthii | | | Rabenhorst | CAD_TWG | CSUSM |
| Nitzschia cf oregona | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf oregona | | | | CAD_TWG | CSUSM |
| Nitzschia cf palea | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf palea | | | | CAD_TWG | CSUSM |
| Nitzschia cf paleacea | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf paleacea | | | Grunow in Van Heurck | CAD_TWG | CSUSM |
| Nitzschia cf pellucida | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf pellucida | | | Grunow in Cleve & Grunow | CAD_TWG | CSUSM |
| Nitzschia cf prolongata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf prolongata | | | Hustedt | CAD_TWG | EcoAnalysts |
| Nitzschia cf recta | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf recta | | | Hantzsch ex Rabenhorst | CAD_TWG | CSUSM |
| Nitzschia cf rosenstockii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf rosenstockii | | | Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Nitzschia cf sigma | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf sigma | | | | CAD_TWG | EcoAnalysts |
| Nitzschia cf solita | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf solita | | | Hust. | CAD_TWG | CSUSM |
| Nitzschia cf subacicularis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf subacicularis | | | Hustedt in Schnidt et al | CAD_TWG | EcoAnalysts |
| Nitzschia cf suchlandtii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf suchlandtii | | | Hustedt | CAD_TWG | EcoAnalysts |
| Nitzschia cf supralitorea | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf supralitorea | | | Lange-Bertalot | CAD_TWG | CSUSM |
| Nitzschia cf umbonata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf umbonata | | | (Ehrenberg) Lange-Bertalot | CAD_TWG | CSUSM |
| Nitzschia cf vasta | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf vasta | | | Hustedt | CAD_TWG | CSUSM |
| Nitzschia cf vitrea | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf vitrea | | | Norman | CAD_TWG | CSUSM |
| Nitzschia cf wuellerstorffii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia cf wuellerstorffii | | | Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Nitzschia clausii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia clausii | | | Hantzsch | CAD_TWG | UCOB |
| Nitzschia columbiana | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia columbiana | | | Sovereign | CAD_TWG | UCOB |
| Nitzschia communis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia communis | | | Rabenhorst | CAD_TWG | UCOB |
| Nitzschia commutata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia commutata | | | Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Nitzschia commutatoides | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia commutatoides | | | Lange-Bertalot in Lange-Bertalot & Krammer | CAD_TWG | UCOB |
| Nitzschia compressa var vexans | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia compressa | | Nitzschia compressa var vexans | (Grunow) Lange-Bertalot | CAD_TWG | UCOB |
| Nitzschia costei | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia costei | | | Rimet and Ector | CAD_TWG | EcoAnalysts |
| Nitzschia dealpina | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia dealpina | | | Lange-Bertalot & G.Hofmann | CAD_TWG | EcoAnalysts |
| Nitzschia desertorum | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia desertorum | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia dissipata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia dissipata | | | (Kutzing) Grunow | CAD_TWG | UCOB |
| Nitzschia dissipata var media | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia dissipata | | Nitzschia dissipata var media | (Hantzsch) Grunow in Van Heurck | CAD_TWG | UCOB |
| Nitzschia draveillensis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia draveillensis | | | Coste & Ricard | CAD_TWG | EcoAnalysts |
| Nitzschia dubia | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia dubia | | | W Smith | CAD_TWG | UCOB |
| Nitzschia elegantula | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia elegantula | | | Grunow in Van Heurck | CAD_TWG | UCOB |
| Nitzschia epithemoides | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia epithemoides | | | Grunow | CAD_TWG | NAU |
| Nitzschia exilis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia exilis | | | Sovereign | CAD_TWG | UCOB |
| Nitzschia fasciculata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia fasciculata | | | (Grunow) Grunow in Van Heurck | CAD_TWG | UCOB |
| Nitzschia filiformis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia filiformis | | | (W Smith) Van Heurck | CAD_TWG | UCOB |
| Nitzschia filiformis var conferta | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia filiformis | | Nitzschia filiformis var conferta | (Richter) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Nitzschia flexa | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia flexa | | | Schumann | CAD_TWG | UCOB |
| Nitzschia flexoides | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia flexoides | | | Geitler | CAD_TWG | UCOB |
| Nitzschia fonticola | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia fonticola | | | (Grunow) Grunow in Van Heurck | CAD_TWG | UCOB |
| Nitzschia fonticoloides | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia fonticoloides | | | Sovereign | CAD_TWG | UCOB |
| Nitzschia fossilis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia fossilis | | | (Grunow) Grunow | CAD_TWG | EcoAnalysts |
| Nitzschia frequens | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia frequens | | | Hustedt | CAD_TWG | EcoAnalysts |
| Nitzschia frustulum | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia frustulum | | | (Kutzing) Grunow | CAD_TWG | UCOB |
| Nitzschia fruticosa | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia fruticosa | | | Hustedt | CAD_TWG | EcoAnalysts |
| Nitzschia gessneri | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia gessneri | | | Hustedt | CAD_TWG | EcoAnalysts |
| Nitzschia graciliformis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia graciliformis | | | Lange-Bertalot & Simonsen | CAD_TWG | UCOB |
| Nitzschia gracilis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia gracilis | | | Hantzsch in Rabenhorst | CAD_TWG | UCOB |
| Nitzschia hantzschiana | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia hantzschiana | | | Rabenhorst | CAD_TWG | UCOB |
| Nitzschia heufleriana | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia heufleriana | | | Grunow | CAD_TWG | UCOB |
| Nitzschia homburgiensis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia homburgiensis | | | Lange-Bertalot | CAD_TWG | UCOB |
| Nitzschia hybrida | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia hybrida | | | Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Nitzschia incognita | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia incognita | | | Legler & Krasske | CAD_TWG | UCOB |
| Nitzschia inconspicua | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia inconspicua | | | Grunow | CAD_TWG | UCOB |
| Nitzschia incurva var lorenziana | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia incurva | | Nitzschia incurva var lorenziana | R.Ross | CAD_TWG | CSUSM |
| Nitzschia innominata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia innominata | | | Sovereign | CAD_TWG | UCOB |
| Nitzschia intermedia | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia intermedia | | | Hantzsch ex Cleve & Grunow | CAD_TWG | UCOB |
| Nitzschia kotschyi | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia kotschyi | | | (Grunow) Mills | CAD_TWG | CSUSM |
| Nitzschia lacunarum | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia lacunarum | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia lacuum | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia lacuum | | | Lange-Bertalot | CAD_TWG | UCOB |
| Nitzschia laevis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia laevis | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia lanceolata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia lanceolata | | | W Smith | CAD_TWG | UCOB |
| Nitzschia leistikowii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia leistikowii | | | | CAD_TWG | EcoAnalysts |
| Nitzschia liebethruthii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia liebethruthii | | | Rabenhorst | CAD_TWG | UCOB |
| Nitzschia linearis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia linearis | | | (Agardh) W Smith | CAD_TWG | UCOB |
| Nitzschia linearis var tenuis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia linearis | | Nitzschia linearis var tenuis | (Smith) Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Nitzschia littorea | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia littorea | | | Grunow in Van Heurck | CAD_TWG | UCOB |
| Nitzschia microcephala | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia microcephala | | | Grunow | CAD_TWG | UCOB |
| Nitzschia minuta | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia minuta | | | Bleisch | CAD_TWG | UCOB |
| Nitzschia modesta | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia modesta | | | Hustedt ex Brendemuhl | CAD_TWG | UCOB |
| Nitzschia montanestris | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia montanestris | | | | CAD_TWG | EcoAnalysts |
| Nitzschia nana | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia nana | | | Grunow in Van Heurck | CAD_TWG | UCOB |
| Nitzschia normanii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia normanii | | | Grunow ex Van Heurck | CAD_TWG | UCOB |
| Nitzschia obtusa | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia obtusa | | | Smith | CAD_TWG | UCOB |
| Nitzschia oligotraphenta | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia oligotraphenta | | | (Lange-Bertalot) Lange-Bertalot | CAD_TWG | CSUSM |
| Nitzschia oregona | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia oregona | | | Sovereign | CAD_TWG | UCOB |
| Nitzschia ovalis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia ovalis | | | Arnott in Cleve & Grunow | CAD_TWG | UCOB |
| Nitzschia palea | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia palea | | | (Kutzing) W Smith | CAD_TWG | UCOB |
| Nitzschia palea var debilis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia palea | | Nitzschia palea var debilis | (Kutzing) Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Nitzschia palea var tenuirostris | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia palea | | Nitzschia palea var tenuirostris | Grunow in Van Heurck | CAD_TWG | UCOB |
| Nitzschia paleacea | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia paleacea | | | Grunow in Van Heurck | CAD_TWG | UCOB |
| Nitzschia paleaeformis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia paleaeformis | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia panduriformis var continua | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia panduriformis | | Nitzschia panduriformis var continua | Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Nitzschia parvula | | Heterokontophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia parvula | | | Smith | CAD_TWG | UCOB |
| Nitzschia pellucida | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia pellucida | | | Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Nitzschia perminuta | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia perminuta | | | (Grunow in Van Heurck) M Peragallo | CAD_TWG | UCOB |
| Nitzschia perpusilla | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia perpusilla | | | Rabenhorst | CAD_TWG | UCOB |
| Nitzschia perspicua | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia perspicua | | | Cholnoky | CAD_TWG | UCOB |
| Nitzschia prolongata var hoehnkii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia prolongata | | Nitzschia prolongata var hoehnkii | (Hustedt) Lange-Bertalot | CAD_TWG | UCOB |
| Nitzschia pseudofonticola | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia pseudofonticola | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia pumila | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia pumila | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia pura | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia pura | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia pusilla | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia pusilla | | | Grunow | CAD_TWG | UCOB |
| Nitzschia radicula | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia radicula | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia recta | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia recta | | | Hantzsch ex Rabenhorst | CAD_TWG | UCOB |
| Nitzschia reversa | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia reversa | | | Smith | CAD_TWG | UCOB |
| Nitzschia rosenstockii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia rosenstockii | | | Lange-Bertalot | CAD_TWG | UCOB |
| Nitzschia rostellata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia rostellata | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia scalpelliformis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia scalpelliformis | | | Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Nitzschia sigma | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia sigma | | | (Kutzing) W Smith | CAD_TWG | UCOB |
| Nitzschia sigmoidea | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia sigmoidea | | | (Nitzsch) W Smith | CAD_TWG | UCOB |
| Nitzschia siliqua | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia siliqua | | | Archibald | CAD_TWG | UCOB |
| Nitzschia sinuata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia sinuata | | | (Thwaites in W Smith) Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Nitzschia sociabilis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia sociabilis | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia solita | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia solita | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia soratensis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia soratensis | | | E.A. Morales et M.L. Vis | CAD_TWG | CSUSM |
| Nitzschia sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia sp 1 | | | | CAD_TWG | EcoAnalysts |
| Nitzschia sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia sp 2 | | | | CAD_TWG | EcoAnalysts |
| Nitzschia sp 2 SWAMP KB | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia sp 2 SWAMP KB | | | | CAD_TWG | UCOB |
| Nitzschia sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia sp 3 | | | | CAD_TWG | EcoAnalysts |
| Nitzschia sp 4 | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia sp 4 | | | | CAD_TWG | EcoAnalysts |
| Nitzschia sp 5 | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia sp 5 | | | | CAD_TWG | CSUSM |
| Nitzschia sp 6 | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia sp 6 | | | | CAD_TWG | CSUSM |
| Nitzschia sp 7 | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia sp 7 | | | | CAD_TWG | CSUSM |
| Nitzschia subacicularis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia subacicularis | | | Hustedt in Schmidt et al | CAD_TWG | UCOB |
| Nitzschia subcohaerens var scotica | | Heterokontophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia subcohaerens | | Nitzschia subcohaerens var scotica | (Grunow in Van Heurck) Van Heurck | CAD_TWG | UCOB |
| Nitzschia sublinearis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia sublinearis | | | Hustedt in Schmidt et al | CAD_TWG | UCOB |
| Nitzschia subtilis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia subtilis | | | (Kutzing) Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Nitzschia suchlandtii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia suchlandtii | | | Hustedt | CAD_TWG | CSUSM |
| Nitzschia supralitorea | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia supralitorea | | | Lange-Bertalot | CAD_TWG | UCOB |
| Nitzschia tenuirostris | | Heterokontophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia tenuirostris | | | Manguin in Bourrelly & Manguin | CAD_TWG | UCOB |
| Nitzschia tenuis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia tenuis | | | | CAD_TWG | CSUSM |
| Nitzschia terrestris | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia terrestris | | | (Petersen) Hustedt | CAD_TWG | EcoAnalysts |
| Nitzschia tropica | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia tropica | | | Hustedt | CAD_TWG | UCOB |
| Nitzschia tubicola | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia tubicola | | | Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Nitzschia umbonata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia umbonata | | | (Ehrenberg) Lange-Bertalot | CAD_TWG | UCOB |
| Nitzschia valdecostata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia valdecostata | | | Lange-Bertalot & Simonsen | CAD_TWG | UCOB |
| Nitzschia valdestriata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia valdestriata | | | Aleem & Hustedt | CAD_TWG | UCOB |
| Nitzschia vermicularis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia vermicularis | | | (Kutzing) Hantzsch in Rabenhorst | CAD_TWG | UCOB |
| Nitzschia vexans | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia vexans | | | Grunow | CAD_TWG | CSUSM |
| Nitzschia vitrea | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia vitrea | | | Norman | CAD_TWG | UCOB |
| Nitzschia vitrea var salinarum | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia vitrea | | Nitzschia vitrea var salinarum | Grunow | CAD_TWG | UCOB |
| Nitzschia volcanica | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia volcanica | | | Sovereign 1958 | CAD_TWG | UCOB |
| Nitzschia wuellerstorffii | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Nitzschia | | Nitzschia wuellerstorffii | | | Lange-Bertalot in Lange-Bertalot & Krammer | CAD_TWG | UCOB |
| Nupela | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Nupela | | | | | | CAD_TWG | UCOB |
| Nupela carolina | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Nupela | | Nupela carolina | | | Potapova and Clason | CAD_TWG | EcoAnalysts |
| Nupela elegantula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Nupela | | Nupela elegantula | | | Potapova | CAD_TWG | UCOB |
| Nupela fennica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Nupela | | Nupela fennica | | | (Hustedt) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Nupela impexiformis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Nupela | | Nupela impexiformis | | | (Lange-Bertalot) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Nupela lapidosa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Nupela | | Nupela lapidosa | | | (Krasske) Lange-Bertalot | CAD_TWG | UCOB |
| Nupela neglecta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Nupela | | Nupela neglecta | | | | CAD_TWG | EcoAnalysts |
| Nupela silvahercynia | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Nupela | | Nupela silvahercynia | | | (Lange-Bertalot) Lange-Bertalot | CAD_TWG | UCOB |
| Nupela sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Nupela | | Nupela sp 1 | | | | CAD_TWG | CSUSM |
| Nupela sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Nupela | | Nupela sp 2 | | | | CAD_TWG | CSUSM |
| Nupela sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Nupela | | Nupela sp 3 | | | | CAD_TWG | CSUSM |
| Nupela subrostrata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Nupela | | Nupela subrostrata | | | (Hustedt) Potapova | CAD_TWG | EcoAnalysts |
| Nupela vitiosa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Nupela | | Nupela vitiosa | | | (Schimanski) Siver and Hamilton | CAD_TWG | EcoAnalysts |
| Nupela wellneri | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Brachysiraceae | | | | Nupela | | Nupela wellneri | | | (Lange-Bertalot) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Odontidium | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Odontidium | | | | | | CAD_TWG | CSUSM |
| Odontidium anceps | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Odontidium | | Odontidium anceps | | | (Ehrenberg) Ralfs | CAD_TWG | CSUSM |
| Odontidium hyemale | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Odontidium | | Odontidium hyemale | | | (Roth) Kutzing | CAD_TWG | CSUSM |
| Odontidium mesodon | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Odontidium | | Odontidium mesodon | | | (Kutzing) Kutzing | CAD_TWG | CSUSM |
| Opephora | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Opephora | | | | | | CAD_TWG | UCOB |
| Opephora americana | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Opephora | | Opephora americana | | | M Peragallo in Tempere & Peragallo | CAD_TWG | UCOB |
| Opephora marina | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Opephora | | Opephora marina | | | (Gregory) Petit | CAD_TWG | UCOB |
| Opephora mutabilis | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Opephora | | Opephora mutabilis | | | Sabbe & Wyverman | CAD_TWG | CSUSM |
| Opephora pacifica | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Opephora | | Opephora pacifica | | | (Grunow) Petit | CAD_TWG | UCOB |
| Opephora sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Opephora | | Opephora sp 1 | | | | CAD_TWG | CSUSM |
| Orthoseira | | Bacillariophyta | | | Coscinodiscophyceae | | | Orthoseirales | | | Orthoseiraceae | | | | Orthoseira | | | | | | CAD_TWG | UCOB |
| Orthoseira roeseana | | Bacillariophyta | | | Coscinodiscophyceae | | | Orthoseirales | | | Orthoseiraceae | | | | Orthoseira | | Orthoseira roeseana | | | (Rabenhorst) O'Meara | CAD_TWG | UCOB |
| Paraplaconeis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Paraplaconeis | | | | | | CAD_TWG | CSUSM |
| Paraplaconeis minor | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaceae | | | | Paraplaconeis | | Paraplaconeis minor | | | (Grunow) Lange-Bertalot | CAD_TWG | CSUSM |
| Paraplaconeis placentula | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaleceae | | | | Paraplaconeis | | Paraplaconeis placentula | | | (Ehrenberg) M.S.Kulikovskiy & Lange-Bertalot | CAD_TWG | CSUSM |
| Paraplaconeis subplacentula | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Cymbellaleceae | | | | Paraplaconeis | | Placoneis subplacentula | | | (Hustedt) Kulikovskiy & Lange-Bertalot | CAD_TWG | CSUSM |
| Parlibellus | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Berkeleyaceae | | | | Parlibellus | | | | | | CAD_TWG | UCOB |
| Pauliella | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Pauliella | | | | | | CAD_TWG | CSUSM |
| Pauliella taeniata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Anomoeoneidaceae | | | | Pauliella | | Pauliella taeniata | | | (Grunow) F.E.Round & Basson | CAD_TWG | CSUSM |
| Pinnularia | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | | | | | CAD_TWG | UCOB |
| Pinnularia abaujensis var linearis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia abaujensis | | Pinnularia abaujensis var linearis | (Hustedt) R.M.Patrick 1966 | CAD_TWG | CSUSM |
| Pinnularia acrosphaeria | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia acrosphaeria | | | (Brebisson) W Smith | CAD_TWG | UCOB |
| Pinnularia acutobrebissonii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia acutobrebissonii | | | Kulikovskiy, Lange-Bertalot & Metzeltin | CAD_TWG | EcoAnalysts |
| Pinnularia aestuarii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia aestuarii | | | Cleve | CAD_TWG | UCOB |
| Pinnularia appendiculata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia appendiculata | | | (Agardh) Cleve | CAD_TWG | UCOB |
| Pinnularia biceps | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia biceps | | | Gregory | CAD_TWG | UCOB |
| Pinnularia borealis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia borealis | | | Ehrenberg | CAD_TWG | UCOB |
| Pinnularia borealis var lanceolata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia borealis | | Pinnularia borealis var lanceolata | | CAD_TWG | EcoAnalysts |
| Pinnularia borealis var rectangularis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia borealis | | Pinnularia borealis var rectangularis | Carlson | CAD_TWG | UCOB |
| Pinnularia brandelii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia brandelii | | | Cleve | CAD_TWG | EcoAnalysts |
| Pinnularia brebissonii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia brebissonii | | | (Kutzing) Rabenhorst | CAD_TWG | CSUSM |
| Pinnularia brevicostata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia brevicostata | | | Cleve | CAD_TWG | UCOB |
| Pinnularia castraregina | | Heterokontophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia castraregina | | | Krammer | CAD_TWG | CSULB-SEAL |
| Pinnularia cf graciloides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia cf graciloides | | | (Grunow) Studnicka 1888 | CAD_TWG | EcoAnalysts |
| Pinnularia cf microstauron | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia cf microstauron | | | (Ehrenb.) Cleve | CAD_TWG | CSUSM |
| Pinnularia cf subcapitata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia cf subcapitata | | | | CAD_TWG | EcoAnalysts |
| Pinnularia cf viridis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia cf viridis | | | (Nitzsch) Ehrenberg | CAD_TWG | EcoAnalysts |
| Pinnularia divergens | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia divergens | | | W Smith | CAD_TWG | UCOB |
| Pinnularia divergentissima | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia divergentissima | | | (Grunow in Van Heurck) Cleve | CAD_TWG | UCOB |
| Pinnularia erratica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia erratica | | | Krammer | CAD_TWG | CSUSM |
| Pinnularia erraticofossilis | | Heterokontophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia erraticofossilis | | | Kulikovskiy, Lange-Bertalot & Metzeltin | CAD_TWG | UCOB |
| Pinnularia gibba | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia gibba | | | Ehrenberg | CAD_TWG | UCOB |
| Pinnularia graciloides var triundulata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia graciloides | | Pinnularia graciloides var triundulata | (Fontell) Krammer 2000 | CAD_TWG | EcoAnalysts |
| Pinnularia hemiptera | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia hemiptera | | | (Kutzing) Rabenhorst | CAD_TWG | UCOB |
| Pinnularia ignobilis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia ignobilis | | | (Krasske) Cleve-Euler | CAD_TWG | UCOB |
| Pinnularia interrupta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia interrupta | | | Smith | CAD_TWG | UCOB |
| Pinnularia islandica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia islandica | | | Ostrup 1918 | CAD_TWG | EcoAnalysts |
| Pinnularia lagerstedtii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia lagerstedtii | | | (Cleve) Cleve-Euler | CAD_TWG | UCOB |
| Pinnularia lata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia lata | | | (Brebisson) W.Smith | CAD_TWG | NAU |
| Pinnularia legumen | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia legumen | | | Ehrenberg | CAD_TWG | UCOB |
| Pinnularia lundii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia lundii | | | Hustedt | CAD_TWG | UCOB |
| Pinnularia maior | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia maior | | | (Kutzing) Rabenhorst | CAD_TWG | UCOB |
| Pinnularia marchica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia marchica | | | | CAD_TWG | CSUSM |
| Pinnularia media | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia media | | | (Krammer) Kulikovskiy, Lange-Bertalot & Metzeltin | CAD_TWG | CSUSM |
| Pinnularia mesogongyla | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia mesogongyla | | | Ehrenberg | CAD_TWG | UCOB |
| Pinnularia mesolepta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia mesolepta | | | (Ehrenberg) W Smith | CAD_TWG | UCOB |
| Pinnularia microstauron | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia microstauron | | | (Ehrenberg) Cleve | CAD_TWG | UCOB |
| Pinnularia neomajor | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia neomajor | | | Krammer | CAD_TWG | CSUSM |
| Pinnularia nobilis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia nobilis | | | (Ehrenberg) Ehrenberg | CAD_TWG | UCOB |
| Pinnularia nodosa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia nodosa | | | (Ehrenberg) W Smith | CAD_TWG | UCOB |
| Pinnularia obscura | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia obscura | | | Krasske | CAD_TWG | UCOB |
| Pinnularia parvulissima | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia parvulissima | | | Krammer 2000 | CAD_TWG | EcoAnalysts |
| Pinnularia platycephala | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia platycephala | | | (Ehrenberg) Cleve | CAD_TWG | NAU |
| Pinnularia pogoii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia pogoii | | | Scherer | CAD_TWG | UCOB |
| Pinnularia pulchra | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia pulchra | | | Ostrup | CAD_TWG | UCOB |
| Pinnularia rabenhorstii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia rabenhorstii | | | | CAD_TWG | CSUSM |
| Pinnularia similis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia similis | | | Hustedt | CAD_TWG | UCOB |
| Pinnularia sinistra | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia sinistra | | | Krammer | CAD_TWG | CSUSM |
| Pinnularia sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia sp 1 | | | | CAD_TWG | EcoAnalysts |
| Pinnularia sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia sp 2 | | | | CAD_TWG | EcoAnalysts |
| Pinnularia sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia sp 3 | | | | CAD_TWG | EcoAnalysts |
| Pinnularia sp 4 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia sp 4 | | | | CAD_TWG | EcoAnalysts |
| Pinnularia sp 5 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia sp 5 | | | | CAD_TWG | CSUSM |
| Pinnularia sp 6 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia sp 6 | | | | CAD_TWG | CSUSM |
| Pinnularia sp 7 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia sp 7 | | | | CAD_TWG | EcoAnalysts |
| Pinnularia sp 8 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia sp 8 | | | | CAD_TWG | CSUSM |
| Pinnularia sp 9 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia sp 9 | | | | CAD_TWG | CSUSM |
| Pinnularia stomatophora | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia stomatophora | | | (Grunow in Schmidt) Cleve | CAD_TWG | UCOB |
| Pinnularia streptoraphe | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia streptoraphe | | | Cleve | CAD_TWG | UCOB |
| Pinnularia subcapitata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia subcapitata | | | Gregory | CAD_TWG | UCOB |
| Pinnularia subgibba var undulata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia subgibba | Pinnularia subgibba var undulata | | Krammer | CAD_TWG | EcoAnalysts |
| Pinnularia subrostrata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia subrostrata | | | (A Cleve) Cleve-Euler | CAD_TWG | UCOB |
| Pinnularia substomatophora | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia substomatophora | | | Hustedt | CAD_TWG | UCOB |
| Pinnularia undula | | Heterokontophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia undula | | | (Schumann) Krammer | CAD_TWG | CSULB-SEAL |
| Pinnularia viridiformis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia viridiformis | | | Krammer | CAD_TWG | EcoAnalysts |
| Pinnularia viridis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pinnulariaceae | | | | Pinnularia | | Pinnularia viridis | | | (Nitzsch) Ehrenberg | CAD_TWG | UCOB |
| Placoneis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | | | | | CAD_TWG | UCOB |
| Placoneis abiskoensis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis abiskoensis | | | (Hustedt) Lange-Bertalot & Metzeltin | CAD_TWG | UCOB |
| Placoneis anglica | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis anglica | | | (Ralfs) E.J.Cox | CAD_TWG | CSUSM |
| Placoneis anglophila | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis anglophila | | | (Lange-Bertalot) Lange-Bertalot | CAD_TWG | Phycotech |
| Placoneis cf clementispronina | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis cf clementispronina | | | Lange-Bertalot & Wojtal | CAD_TWG | CSUSM |
| Placoneis cf gastrum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis cf gastrum | | | (Ehrenb.) Mereschk. | CAD_TWG | CSUSM |
| Placoneis clementioides | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis clementioides | | | (Hustedt) Cox | CAD_TWG | UCOB |
| Placoneis clementis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis clementis | | | (Grunow) Cox | CAD_TWG | UCOB |
| Placoneis clementispronina | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis clementispronina | | | Lange-Bertalot & Wojtal | CAD_TWG | CSUSM |
| Placoneis elginensis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis elginensis | | | (Gregory) Cox | CAD_TWG | UCOB |
| Placoneis elginensis var cuneata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis elginensis | | Placoneis elginensis var cuneata | (M.MOller ex Foged) Lange-Bertalot | CAD_TWG | NAU |
| Placoneis elginensis var neglecta | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis elginensis | | Placoneis elginensis var neglecta | H.Kobayasi | CAD_TWG | CSUSM |
| Placoneis gastrum | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis gastrum | | | (Ehrenberg) Mereschkowsky | CAD_TWG | UCOB |
| Placoneis hambergii | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis hambergii | | | (Hustedt) K Bruder in Bruder & Medlin | CAD_TWG | UCOB |
| Placoneis ignorata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis ignorata | | | (Schimanski) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Placoneis opportuna | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis opportuna | | | (Hustedt) Chudaev & Gololobova | CAD_TWG | CSUSM |
| Placoneis paraelginensis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis paraelginensis | | | Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Placoneis porifera | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis porifera | | | (Hustedt) E.J. Cox | CAD_TWG | UCOB |
| Placoneis rostrata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis rostrata | | | (A.Mayer) E.J.Cox | CAD_TWG | EcoAnalysts |
| Placoneis sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis sp 1 | | | | CAD_TWG | CSUSM |
| Placoneis symmetrica | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis symmetrica | | | (Hustedt) Lange-Bertalot | CAD_TWG | UCOB |
| Placoneis undulata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Placoneis | | Placoneis undulata | | | (Ostrup) Lange-Bertalot | CAD_TWG | EcoAnalysts |
| Plagiotropis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Plagiotropidaceae | | | | Plagiotropis | | | | | | CAD_TWG | UCOB |
| Plagiotropis arizonica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Plagiotropidaceae | | | | Plagiotropis | | Plagiotropis arizonica | | | Czarnecki and Blinn | CAD_TWG | EcoAnalysts |
| Plagiotropis lepidoptera | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Plagiotropidaceae | | | | Plagiotropis | | Plagiotropis lepidoptera | | | (Gregory) Kuntze | CAD_TWG | UCOB |
| Plagiotropis lepidoptera var proboscidea | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Plagiotropidaceae | | | | Plagiotropis | | Plagiotropis lepidoptera | | Plagiotropis lepidoptera var proboscidea | (Cleve) Reimer in Patrick & Reimer | CAD_TWG | UCOB |
| Planothidium | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | | | | | CAD_TWG | UCOB |
| Planothidium abbreviatum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium abbreviatum | | | (Reimer) Potapova | CAD_TWG | UCOB |
| Planothidium amphibium | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium amphibium | | | C.E.Wetzel, L.Ector & L.Pfister | CAD_TWG | CSUSM |
| Planothidium apiculatum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium apiculatum | | | (Patrick) Lange-Bertalot | CAD_TWG | UCOB |
| Planothidium biporomum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium biporomum | | | (Hohn & Hellerman) Lange-Bertalot | CAD_TWG | UCOB |
| Planothidium californicum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium californicum | | | Stancheva | CAD_TWG | CSUSM |
| Planothidium cf engelbrechtii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium cf engelbrechtii | | | (Cholnoky) Round & Bukhtiyarova | CAD_TWG | CSUSM |
| Planothidium cf frequentissimum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium cf frequentissimum | | | | CAD_TWG | EcoAnalysts |
| Planothidium cf haynaldii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium cf haynaldii | | Planothidium cf amphibium | (Schaarschmidt) Lange-Bertalot | CAD_TWG | CSUSM |
| Planothidium cf incuriatum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium cf incuriatum | | | Wetzel, Van de Vijver and Ector | CAD_TWG | CSUSM |
| Planothidium cf lanceolatum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium cf lanceolatum | | | | CAD_TWG | CSUSM |
| Planothidium cf minutissimum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium cf minutissimum | | | (Krasske) Morales | CAD_TWG | CSUSM |
| Planothidium cf oestrupii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium cf oestrupii | | | | CAD_TWG | CSUSM |
| Planothidium cf sheathii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium cf sheathii | | | Stancheva | CAD_TWG | CSUSM |
| Planothidium cryptolanceolatum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium cryptolanceolatum | | | R.Jahn & N.Abarca | CAD_TWG | CSUSM |
| Planothidium daui | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium daui | | | (Foged) Lange-Bertalot | CAD_TWG | UCOB |
| Planothidium delicatulum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium delicatulum | | | (Kutzing) Round & Bukhtiyarova | CAD_TWG | UCOB |
| Planothidium dubium | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium dubium | | | (Grunow) Round & Bukhtiyarova | CAD_TWG | UCOB |
| Planothidium engelbrechtii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium engelbrechtii | | | (Cholnoky) Round & Bukhtiyarova | CAD_TWG | UCOB |
| Planothidium frequentissimum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium frequentissimum | | | (Lange-Bertalot) Lange-Bertalot | CAD_TWG | UCOB |
| Planothidium granum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium granum | | | (Hohn & Hellerman) Lange-Bertalot | CAD_TWG | UCOB |
| Planothidium haukianum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium haukianum | | | (Grunow) Round & Bukhtiyarova | CAD_TWG | UCOB |
| Planothidium holstii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium holstii | | | (Cleve) Lange-Bertalot | CAD_TWG | UCOB |
| Planothidium incuriatum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium incuriatum | | | C.E.Wetzel, Van de Vijver & L.Ector | CAD_TWG | CSUSM |
| Planothidium joursacense | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium joursacense | | | | CAD_TWG | EcoAnalysts |
| Planothidium lanceolatum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium lanceolatum | | | (Brebisson ex Kutzing) Lange-Bertalot | CAD_TWG | UCOB |
| Planothidium lanceolatum var omissum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium lanceolatum | | Planothidium lanceolatum var omissum | (Reimer) Andresen, Stoermer, & Kreis, Jr | CAD_TWG | UCOB |
| Planothidium minutissimum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium minutissimum | | | (Krasske) Morales | CAD_TWG | UCOB |
| Planothidium oestrupii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium oestrupii | | | (Cleve-Euler) Round & Bukhtiyarova | CAD_TWG | UCOB |
| Planothidium pericavum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium pericavum | | | (Carter) Lange-Bertalot | CAD_TWG | UCOB |
| Planothidium potapovae | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium potapovae | | | C.E.Wetzel & L.Ector | CAD_TWG | CSUSM |
| Planothidium robustum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium robustum | | | (Hustedt) Lange-Bertalot | CAD_TWG | UCOB |
| Planothidium rostratoholarcticum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium rostratoholarcticum | | | Lange-Bertalot & Bak | CAD_TWG | CSUSM |
| Planothidium rostratum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium rostratum | | | (Ostrup) Lange-Bertalot | CAD_TWG | UCOB |
| Planothidium sheathii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium sheathii | | | Stancheva | CAD_TWG | CSUSM |
| Planothidium sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium sp 1 | | | | CAD_TWG | CSUSM |
| Planothidium sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium sp 2 | | | | CAD_TWG | CSUSM |
| Planothidium sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium sp 3 | | | | CAD_TWG | CSUSM |
| Planothidium victorii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium victorii | | | | CAD_TWG | CSUSM |
| Planothidium hinzianum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Planothidium | | Planothidium hinzianum | | | C.E.Wetzel, Van de Vijver & Ector | CAD_TWG | CSUSM |
| Platessa | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Platessa | | | | | | CAD_TWG | UCOB |
| Platessa bahlsii | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Platessa | | Platessa bahlsii | | | Potapova | CAD_TWG | EcoAnalysts |
| Platessa cf conspicua | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Platessa | | Platessa cf conspicua | | | (Ant.Mayer) Lange-Bertalot | CAD_TWG | CSUSM |
| Platessa conspicua | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Platessa | | Platessa conspicua | | | (Ant.Mayer) Lange-Bertalot | CAD_TWG | UCOB |
| Platessa kingstonii | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Platessa | | Platessa kingstonii | | | Potapova | CAD_TWG | UCOB |
| Platessa lutheri | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Platessa | | Platessa lutheri | | | (Hustedt) Potapova | CAD_TWG | CSUSM |
| Platessa montana | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Platessa | | Platessa montana | | | | CAD_TWG | EcoAnalysts |
| Platessa rupestris | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Platessa | | Platessa rupestris | | | (Krasske) Lange-Bertalot | CAD_TWG | UCOB |
| Platessa saxonica | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Platessa | | Platessa saxonica | | | (Krasske ex Hustedt) C.E.Wetzel, Lange-Bertalot & Ector | CAD_TWG | CSUSM |
| Platessa sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Platessa | | Platessa sp 1 | | | | CAD_TWG | EcoAnalysts |
| Platessa stewartii | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Platessa | | Planothidium stewartii | | | (Patrick) M.Potapova | CAD_TWG | CSUSM |
| Platessa oblongella | | Bacillariophyta | | | Bacillariophyceae | | | Mastogloiales | | | Achnanthaceae | | | | Platessa | | Platessa oblongella | | | (Ostrup) C.E.Wetzel, Lange-Bertalot & Ector | CAD_TWG | CSUSM |
| Pleurosigma | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pleurosigmataceae | | | | Pleurosigma | | | | | | CAD_TWG | UCOB |
| Pleurosigma angulatum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pleurosigmataceae | | | | Pleurosigma | | Pleurosigma angulatum | | | | CAD_TWG | UCOB |
| Pleurosigma delicatulum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pleurosigmataceae | | | | Pleurosigma | | Pleurosigma delicatulum | | | Smith | CAD_TWG | UCOB |
| Pleurosigma elongatum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pleurosigmataceae | | | | Pleurosigma | | Pleurosigma elongatum | | | W Smith | CAD_TWG | UCOB |
| Pleurosigma salinarum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Pleurosigmataceae | | | | Pleurosigma | | Pleurosigma salinarum | | | (Grunow) Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Pleurosira | | Bacillariophyta | | | Meridiophyceae | | | Eupodiscales | | | Eupodiscaceae | | | | Pleurosira | | | | | | CAD_TWG | UCOB |
| Pleurosira laevis | | Bacillariophyta | | | Meridiophyceae | | | Eupodiscales | | | Eupodiscaceae | | | | Pleurosira | | Pleurosira laevis | | | (Ehrenberg) Compere | CAD_TWG | UCOB |
| Prestauroneis integra | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Prestauroneis | | Prestauroneis integra | | | (W Smith) Bruder in Bruder & Medlin | CAD_TWG | UCOB |
| Prestauroneis protracta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Prestauroneis | | Prestauroneis protracta | | | (Grunow) I.W.Bishop, Minerovic, Q.Liu & Kociolek | CAD_TWG | CSUSM |
| Proschkinia bulnheimii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Proschkiniaceae | | | | Proschkinia | | Proschkinia bulnheimii | | | (Grunow) Karajeva | CAD_TWG | UCOB |
| Psammodictyon | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Psammodictyon | | | | | | CAD_TWG | UCOB |
| Psammodictyon constrictum | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Psammodictyon | | Psammodictyon constrictum | | | (Gregory) Mann in Round, Crawford & Mann | CAD_TWG | UCOB |
| Psammothidium | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | | | | | CAD_TWG | UCOB |
| Psammothidium acidoclinatum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium acidoclinatum | | | | CAD_TWG | EcoAnalysts |
| Psammothidium bioretii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium bioretii | | | (Germain) Bukhtiyarova & Round | CAD_TWG | UCOB |
| Psammothidium cf pennsylvanicum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium cf pennsylvanicum | | | | CAD_TWG | EcoAnalysts |
| Psammothidium cf subatomoides | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium cf subatomoides | | | (Hustedt) Bukhtiyarova & Round | CAD_TWG | CSUSM |
| Psammothidium chlidanos | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium chlidanos | | | (Hohn & Hellerman) Lange-Bertalot | CAD_TWG | UCOB |
| Psammothidium curtissimum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium curtissimum | | | (J.R.Carter) Aboal | CAD_TWG | UCOB |
| Psammothidium daonense | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium daonense | | | (Lange-Bertalot) Lange-Bertalot | CAD_TWG | UCOB |
| Psammothidium didymum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium didymum | | | (Hustedt) Bukhtiyarova & Round | CAD_TWG | UCOB |
| Psammothidium helveticum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium helveticum | | | (Hustedt) Bukhtiyarova & Round | CAD_TWG | UCOB |
| Psammothidium hustedtii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthaceae | | | | Psammothidium | | Psammothidium hustedtii | | | (Krasske) S.Mayama | CAD_TWG | CSUSM |
| Psammothidium lacus-vulcani | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium lacus-vulcani | | | (Lange-Bertalot & Krammer) L.N.Bukhtiyarova | CAD_TWG | UCOB |
| Psammothidium lauenburgianum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium lauenburgianum | | | (Hustedt) Bukhtiyarova & Round | CAD_TWG | UCOB |
| Psammothidium levanderi | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium levanderi | | | (Hustedt) Bukhtiyarova & Round | CAD_TWG | UCOB |
| Psammothidium marginulatum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium marginulatum | | | (Grunow) Bukhtiyarova & Round | CAD_TWG | UCOB |
| Psammothidium rechtense | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthaceae | | | | Psammothidium | | Psammothidium rechtensis | | | (Leclercq) Lange-Bertalot | CAD_TWG | CSUSM |
| Psammothidium rossii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium rossii | | | (Hustedt) Bukhtiyarova & Round | CAD_TWG | UCOB |
| Psammothidium sacculum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium sacculum | | | (Carter) Bukhtiyarova in Bukhtiyarova & Round | CAD_TWG | UCOB |
| Psammothidium scoticum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium scoticum | | | (Flower and Jones) Bukhtiyarova and Round | CAD_TWG | EcoAnalysts |
| Psammothidium semiapertum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium semiapertum | | | (Hustedt) Aboal | CAD_TWG | UCOB |
| Psammothidium sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium sp 1 | | | | CAD_TWG | CSUSM |
| Psammothidium subatomoides | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Psammothidium | | Psammothidium subatomoides | | | (Hustedt) Bukhtiyarova & Round | CAD_TWG | UCOB |
| Psammothidium subsalsum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthaceae | | | | Psammothidium | | Psammothidium subsalsum | | | (J.B.Petersen) Kulikowskiy, Witkowski & Plinski | CAD_TWG | CSUSM |
| Psammothidium ventrale | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthaceae | | | | Psammothidium | | Psammothidium ventrale | | | (Krasske) Bukhtiyarova & Round | CAD_TWG | CSUSM |
| Pseudofallacia | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Pseudofallacia | | | | | | CAD_TWG | CSUSM |
| Pseudofallacia cf occulta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Pseudofallacia | | Pseudofallacia cf occulta | | | | CAD_TWG | CSUSM |
| Pseudofallacia occulta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Pseudofallacia | | Pseudofallacia occulta | | | (Krasske) Y.Liu, Kociolek & Q.X.Wang | CAD_TWG | CSUSM |
| Pseudostaurosira | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosira | | | | | | CAD_TWG | UCOB |
| Pseudostaurosira alvareziae | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosira | | Pseudostaurosira alvareziae | | | Cejudo-Figueiras, E.A.Morales & Ector 2011 | CAD_TWG | Rhithron |
| Pseudostaurosira brevistriata | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosira | | Pseudostaurosira brevistriata | | | (Grunow in Van Heurck) Williams & Round | CAD_TWG | UCOB |
| Pseudostaurosira cf brevistriata | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosira | | Pseudostaurosira cf brevistriata | | | (Grunow in Van Heurck) Williams & Round | CAD_TWG | CSUSM |
| Pseudostaurosira cf elliptica | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosira | | Pseudostaurosira cf elliptica | | | (Schumann) Edlund, Morales & Spaulding | CAD_TWG | CSUSM |
| Pseudostaurosira cf parasitica | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosira | | Pseudostaurosira cf parasitica | | | | CAD_TWG | EcoAnalysts |
| Pseudostaurosira elliptica | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosira | | Pseudostaurosira elliptica | | | (Schumann) Edlund, Morales & Spaulding | CAD_TWG | UCOB |
| Pseudostaurosira microstriata | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosira | | Pseudostaurosira microstriata | | | (Marciniak) Flower | CAD_TWG | EcoAnalysts |
| Pseudostaurosira neoelliptica | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosira | | Pseudostaurosira neoelliptica | | | (Witkowski) E.A.Morales | CAD_TWG | EcoAnalysts |
| Pseudostaurosira parasitica | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosira | | Pseudostaurosira parasitica | | | (Smith) Morales | CAD_TWG | UCOB |
| Pseudostaurosira robusta | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosira | | Pseudostaurosira robusta | | | (Fusey) D.M.Williams & Round | CAD_TWG | NAU |
| Pseudostaurosira sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosira | | Pseudostaurosira sp 1 | | | | CAD_TWG | CSUSM |
| Pseudostaurosira sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosira | | Pseudostaurosira sp 3 | | | | CAD_TWG | CSUSM |
| Pseudostaurosira subconstricta | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosira | | Pseudostaurosira subconstricta | | | (Grunow) Kulikovskiy & Genkal | CAD_TWG | CSUSM |
| Pseudostaurosiropsis | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosiropsis | | | | | | CAD_TWG | UCOB |
| Pseudostaurosiropsis connecticutensis | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosiropsis | | Pseudostaurosiropsis connecticutensis | | | Morales | CAD_TWG | UCOB |
| Pseudostaurosiropsis punctiformis | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Pseudostaurosiropsis | | Pseudostaurosiropsis punctiformis | | | (Witkowski, Metzeltin & Lange-Bertalot) Witkowski, Seddon & Plinski | CAD_TWG | CSUSM |
| Punctastriata | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Punctastriata | | | | | | CAD_TWG | CSUSM |
| Punctastriata lancettula | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Punctastriata | | Punctastriata lancettula | | | (Schumann) P.B.Hamilton & Siver | CAD_TWG | CSUSM |
| Punctastriata mimetica | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Punctastriata | | Punctastriata mimetica | | | E.A.Morales | CAD_TWG | EcoAnalysts |
| Reimeria | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Reimeria | | | | | | CAD_TWG | UCOB |
| Reimeria fontinalis | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Reimeria | | Reimeria fontinalis | | | | CAD_TWG | CSUSM |
| Reimeria sinuata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Reimeria | | Reimeria sinuata | | | (Gregory) Kociolek & Stoermer | CAD_TWG | UCOB |
| Reimeria sinuata f antiqua | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Reimeria | | Reimeria sinuata | | Reimeria sinuata f antiqua | (Grunow) Kociolek & Stoermer | CAD_TWG | UCOB |
| Reimeria uniseriata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Gomphonemataceae | | | | Reimeria | | Reimeria uniseriata | | | Sala, Guerrero & Ferrario | CAD_TWG | UCOB |
| Rhoicosphenia | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Rhoicosphenia | | | | | | CAD_TWG | UCOB |
| Rhoicosphenia abbreviata | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Rhoicosphenia | | Rhoicosphenia abbreviata | | | (Agardh) Lange-Bertalot | CAD_TWG | UCOB |
| Rhoicosphenia californica | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Rhoicosphenia | | Rhoicosphenia californica | | | Thomas and Kociolek | CAD_TWG | CSUSM |
| Rhoicosphenia lowei | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Rhoicosphenia | | Rhoicosphenia lowei | | | E.W. Thomas et Kociolek | CAD_TWG | CSUSM |
| Rhoicosphenia stoermeri | | Bacillariophyta | | | Bacillariophyceae | | | Cymbellales | | | Rhoicospheniaceae | | | | Rhoicosphenia | | Rhoicosphenia stoermeri | | | E.W. Thomas et Kociolek | CAD_TWG | CSUSM |
| Rhopalodia | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Rhopalodia | | | | | | CAD_TWG | UCOB |
| Rhopalodia acuminata | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Rhopalodia | | Rhopalodia acuminata | | | Krammer in Lange-Bertalot & Krammer | CAD_TWG | UCOB |
| Rhopalodia brebissonii | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Rhopalodia | | Rhopalodia brebissonii | | | Krammer in Lange-Bertalot & Krammer | CAD_TWG | UCOB |
| Rhopalodia cf musculus | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Rhopalodia | | Rhopalodia cf musculus | | | (Kutzing) Müller | CAD_TWG | CSUSM |
| Rhopalodia constricta | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Rhopalodia | | Rhopalodia constricta | | | (W Smith) Krammer in Lange-Bertalot & Krammer | CAD_TWG | UCOB |
| Rhopalodia gibba var minuta | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Rhopalodia | | Rhopalodia gibba | | Rhopalodia gibba var minuta | Krammer in Lange-Bertalot & Krammer | CAD_TWG | UCOB |
| Rhopalodia gibba var ventricosa | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Rhopalodia | | Rhopalodia gibba | | Rhopalodia gibba var ventricosa | (Kutzing) Peragallo & Peragallo | CAD_TWG | UCOB |
| Rhopalodia gibberula | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Rhopalodia | | Rhopalodia gibberula | | | (Ehrenberg) Muller | CAD_TWG | UCOB |
| Rhopalodia musculus | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Rhopalodia | | Rhopalodia musculus | | | (Kutzing) Muller | CAD_TWG | UCOB |
| Rhopalodia rupestris | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | Rhopalodia | | Rhopalodia rupestris | | | (W Smith) Krammer in Lange-Bertalot & Krammer | CAD_TWG | UCOB |
| Rhopalodiaceae | | Bacillariophyta | | | Bacillariophyceae | | | Rhopalodiales | | | Rhopalodiaceae | | | | | | | | | | CAD_TWG | UCOB |
| Rossithidium | | Bacillariophyta | | | Bacillariophyceae | | | Achnanthales | | | Achnanthaceae | | | | Rossthidium | | | | | | CAD_TWG | UCOB |
| Rossithidium anastasiae | | Heterokontophyta | | | Bacillariophyceae | | | Achnanthales | | | Achnanthidiaceae | | | | Rossthidium | | Rossithidium anastasiae | | | (Kaczmarska) Potapova | CAD_TWG | EcoAnalysts |
| Rossithidium duthiei | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Rossthidium | | Rossithidium duthiei | | | (Sreenivasa) Kingston | CAD_TWG | UCOB |
| Rossithidium linearis | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Rossthidium | | Rossithidium linearis | | | (W Smith) Round & Bukhtiyarova | CAD_TWG | UCOB |
| Rossithidium nodosum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Rossthidium | | Rossithidium nodosum | | | (Cleve) Aboal | CAD_TWG | UCOB |
| Rossithidium petersennii | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Rossthidium | | Rossithidium petersennii | | | (Hustedt) Round & Bukhtiyarova | CAD_TWG | UCOB |
| Rossithidium pusillum | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Rossthidium | | Rossithidium pusillum | | | (Grunow) Round & Bukhtiyarova | CAD_TWG | UCOB |
| Rossithidium sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Rossthidium | | Rossithidium sp 1 | | | | CAD_TWG | CSUSM |
| Sellaphora | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | | | | | CAD_TWG | UCOB |
| Sellaphora absoluta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora absoluta | | | (Hustedt) Wetzel, Ector, Van de Vijver, Compere & D.G.Mann | CAD_TWG | CSUSM |
| Sellaphora alastos | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora alastos | | | (Hohn & Hellerman) Lange-Bertalot and Metzeltin | CAD_TWG | EcoAnalysts |
| Sellaphora americana | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora americana | | | (Ehrenberg) Mann | CAD_TWG | UCOB |
| Sellaphora arvensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora arvensis | | | (Hustedt) C.E.Wetzel & L.Ector | CAD_TWG | CSUSM |
| Sellaphora atomoides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora atomoides | | | (Grunow) Wetzel & Van de Vijver in Wetzel | CAD_TWG | CSUSM |
| Sellaphora bacilloides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora bacilloides | | | (Hustedt) Levkov, Krstic & Nakov in Levkov, Nakov | CAD_TWG | UCOB |
| Sellaphora bacillum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora bacillum | | | (Ehrenberg) Mann | CAD_TWG | UCOB |
| Sellaphora cf atomoides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora cf atomoides | | | | CAD_TWG | CSUSM |
| Sellaphora cf bacillum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora cf bacillum | | | (Ehrenberg) Mann | CAD_TWG | CSUSM |
| Sellaphora cf mutatoides | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora cf mutatoides | | | | CAD_TWG | EcoAnalysts |
| Sellaphora cf nigri | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora cf nigri | | | (De Notaris) C.E.Wetzel & L.Ector | CAD_TWG | CSUSM |
| Sellaphora cf pupula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora cf pupula | | | | CAD_TWG | CSUSM |
| Sellaphora cf queretana | | Heterokontophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora cf queretana | | | D.Mora, N.Abarca & J.Carmona | CAD_TWG | CSULB-SEAL |
| Sellaphora cf seminulum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora cf seminulum | | | (Grunow) Mann | CAD_TWG | CSUSM |
| Sellaphora chilensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora chilensis | | | (G.Krasske) C.E.Wetzel | CAD_TWG | CSUSM |
| Sellaphora crassulexigua | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora crassulexigua | | | (E.Reichardt) C.E.Wetzel et L.Ector | CAD_TWG | CSUSM |
| Sellaphora difficillima | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora difficillima | | | (Hustedt) C.E.Wetzel, L.Ector & D.G.Mann | CAD_TWG | CSUSM |
| Sellaphora harderi | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora harderi | | | (Hustedt) J.Foets & C.E.Wetzel | CAD_TWG | CSUSM |
| Sellaphora hustedtii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora hustedtii | | | (Krasske) Lange-Bertalot & Werum | CAD_TWG | UCOB |
| Sellaphora japonica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora japonica | | | | CAD_TWG | EcoAnalysts |
| Sellaphora javanica | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora javanica | | | | CAD_TWG | EcoAnalysts |
| Sellaphora joubaudii | | Heterokontophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora joubaudii | | | Germain; Aboal:Aboal,Alvarez-Cobelas,Cambra,Ector | CAD_TWG | UCOB |
| Sellaphora laevissima | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora laevissima | | | (Kutzing) Mann | CAD_TWG | UCOB |
| Sellaphora limata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora limata | | | (Hustedt) C.E.Wetzel, L.Ector, B.Van de Vijver, Compere & D.G.Mann | CAD_TWG | CSUSM |
| Sellaphora medioconvexa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora medioconvexa | | | (Hustedt) C.E.Wetzel | CAD_TWG | CSUSM |
| Sellaphora mutata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora mutata | | | (Krasske) Lange-Bertalot | CAD_TWG | UCOB |
| Sellaphora nigri | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora nigri | | | (De Notaris) C.E.Wetzel & L.Ector | CAD_TWG | CSUSM |
| Sellaphora nyassensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora nyassensis | | | (Muller) Mann | CAD_TWG | UCOB |
| Sellaphora parapupula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora parapupula | | | Lange-Bertalot | CAD_TWG | CSUSM |
| Sellaphora pseudoarvensis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora pseudoarvensis | | | (Hustedt) C.E.Wetzel & L.Ector | CAD_TWG | CSUSM |
| Sellaphora pseudopupula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora pseudopupula | | | (Krasske) Lange-Bertalot | CAD_TWG | UCOB |
| Sellaphora pseudoventralis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora pseudoventralis | | | (Hustedt) Chudaev & Gololobova | CAD_TWG | CSUSM |
| Sellaphora pulchra | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora pulchra | | | Enache and Potapova | CAD_TWG | EcoAnalysts |
| Sellaphora pupula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora pupula | | | (Kutzing) Mereschkowsky | CAD_TWG | UCOB |
| Sellaphora queretana | | Heterokontophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora queretana | | | D.Mora, N.Abarca & J.Carmona | CAD_TWG | CSULB-SEAL |
| Sellaphora rectangularis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora rectangularis | | | (Gregory) Lange-Bertalot and Metzeltin | CAD_TWG | EcoAnalysts |
| Sellaphora rotunda | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora rotunda | | | (Hustedt) C.E.Wetzel, L.Ector, B.Van de Vijver, Compere & D.G.Mann | CAD_TWG | CSUSM |
| Sellaphora saugerresii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora saugerresii | | | (Desmazieres) C.E.Wetzel & D.G.Mann | CAD_TWG | CSUSM |
| Sellaphora schadei | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora schadei | | | (Krasske) C.E.Wetzel, L.Ector, B.Van de Vijver, Compere & D.G.Mann | CAD_TWG | CSUSM |
| Sellaphora schaumburgii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora schaumburgii | | | (Lange-Bertalot & G.Hoffmann) C.E.Wetzel & L.Ector | CAD_TWG | CSUSM |
| Sellaphora seminulum | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora seminulum | | | (Grunow) Mann | CAD_TWG | UCOB |
| Sellaphora sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora sp 1 | | | | CAD_TWG | CSUSM |
| Sellaphora sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora sp 2 | | | | CAD_TWG | CSUSM |
| Sellaphora stroemii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora stroemii | | | (Hustedt) Kobayasi in Mayama, Idei, Osada & Nagumo | CAD_TWG | UCOB |
| Sellaphora subfasciata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora subfasciata | | | M.Potapova 2013 | CAD_TWG | EcoAnalysts |
| Sellaphora submuralis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora submuralis | | | (Hustedt) C.E.Wetzel, L.Ector, B.Van de Vijver, Compere & D.G.Mann | CAD_TWG | CSUSM |
| Sellaphora subrotundata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora subrotundata | | | (Hustedt) C.E.Wetzel, L.Ector, B.Van de Vijver, Compere & D.G.Mann | CAD_TWG | CSUSM |
| Sellaphora tridentula | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora tridentula | | | (Krasske) C.E.Wetzel | CAD_TWG | CSUSM |
| Sellaphora utermoehlii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora utermoehlii | | | (Hustedt) C.E.Wetzel & D.G.Mann | CAD_TWG | EcoAnalysts |
| Sellaphora vitabunda | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora vitabunda | | | (Hustedt) D.G.Mann | CAD_TWG | CSUSM |
| Sellaphora wallacei | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Sellaphoraceae | | | | Sellaphora | | Sellaphora wallacei | | | Potapova & Ponader | CAD_TWG | EcoAnalysts |
| Seminavis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Seminavis | | | | | | CAD_TWG | UCOB |
| Seminavis sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Seminavis | | Seminavis sp 1 | | | | CAD_TWG | EcoAnalysts |
| Seminavis sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Seminavis | | Seminavis sp 2 | | | | CAD_TWG | CSUSM |
| Seminavis strigosa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Naviculaceae | | | | Seminavis | | Seminavis strigosa | | | (Hustedt) Danielidis and Economou-Amilli | CAD_TWG | EcoAnalysts |
| Simonsenia | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Simonsenia | | | | | | CAD_TWG | UCOB |
| Simonsenia delognei | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Simonsenia | | Simonsenia delognei | | | (Grunow) Lange-Bertalot | CAD_TWG | UCOB |
| Skabitschewskia | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Skabitschewskia | | | | | | CAD_TWG | CSUSM |
| Skabitschewskia pergalloi | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Skabitschewskia | | Skabitschewskia pergalloi | | | (Brun & Heribaud-Joseph) Kuliskovskiy & Lange-Bertalot | CAD_TWG | CSUSM |
| Skabitschewskia pungens | | Bacillariophyta | | | Bacillariophyceae | | | Cocconeidales | | | Achnanthidiaceae | | | | Skabitschewskia | | Skabitschewskia pungens | | | (Cleve-Euler) Kuliskovskiy & Lange-Bertalot | CAD_TWG | CSUSM |
| Stauroforma | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Stauroforma | | | | | | CAD_TWG | UCOB |
| Stauroforma atomus | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Stauroforma | | Stauroforma atomus | | | (Hustedt) D.Talgatti, C.E.Wetzel, E.Morales & L.C.Torgan | CAD_TWG | EcoAnalysts |
| Stauroforma exiguiformis | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Stauroforma | | Stauroforma exiguiformis | | | (Lange-Bertalot) Flower, Jones & Round | CAD_TWG | UCOB |
| Stauroneis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | | | | | CAD_TWG | UCOB |
| Stauroneis acidoclinata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis acidoclinata | | | Lange-Bertalot & Werum | CAD_TWG | CSUSM |
| Stauroneis acuta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis acuta | | | W.Smith 1853 | CAD_TWG | EcoAnalysts |
| Stauroneis agrestis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis agrestis | | | Petersen | CAD_TWG | EcoAnalysts |
| Stauroneis anceps | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis anceps | | | Ehrenberg | CAD_TWG | UCOB |
| Stauroneis anceps f gracilis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis anceps | | Stauroneis anceps f gracilis | Rabenhorst | CAD_TWG | UCOB |
| Stauroneis borrichii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis borrichii | | | (J.B.Petersen) J.W.G.Lund | CAD_TWG | CSUSM |
| Stauroneis bovbjergii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis bovbjergii | | | Reimer | CAD_TWG | CSUSM |
| Stauroneis cf anceps | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis cf anceps | | | Ehrenberg | CAD_TWG | CSUSM |
| Stauroneis gracilis | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis gracilis | | | Ehrenberg | CAD_TWG | UCOB |
| Stauroneis kootenai | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis kootenai | | | Bahls | CAD_TWG | EcoAnalysts |
| Stauroneis kriegeri | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis kriegeri | | | Patrick | CAD_TWG | UCOB |
| Stauroneis legumen | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis legumen | | | Ehrenberg | CAD_TWG | UCOB |
| Stauroneis lundii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis lundii | | | Hustedt | CAD_TWG | UCOB |
| Stauroneis neohyalina | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis neohyalina | | | Lange-Bertalot and Krammer | CAD_TWG | EcoAnalysts |
| Stauroneis obtusa | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis obtusa | | | Lagerstedt | CAD_TWG | UCOB |
| Stauroneis parathermicola | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis parathermicola | | | Lange-Bertalot | CAD_TWG | CSUSM |
| Stauroneis phoenicenteron | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis phoenicenteron | | | (Nitzsch) Ehrenberg | CAD_TWG | UCOB |
| Stauroneis pikuni | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis pikuni | | | Bahls, L. | CAD_TWG | EcoAnalysts |
| Stauroneis producta | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis producta | | | Grunow in Van Heurck | CAD_TWG | UCOB |
| Stauroneis reichardtii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis reichardtii | | | Lange-Bertalot, Cavacini, Tagliaventi and Alifinito | CAD_TWG | EcoAnalysts |
| Stauroneis schulzii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis schulzii | | | Jouse | CAD_TWG | EcoAnalysts |
| Stauroneis separanda | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis separanda | | | Lange-Bertalot and Werum in Werum and Lange-Bertalot 2004 | CAD_TWG | EcoAnalysts |
| Stauroneis smithii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis smithii | | | Grunow | CAD_TWG | UCOB |
| Stauroneis sonyae | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis sonyae | | | | CAD_TWG | EcoAnalysts |
| Stauroneis sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis sp 1 | | | | CAD_TWG | EcoAnalysts |
| Stauroneis sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis sp 2 | | | | CAD_TWG | EcoAnalysts |
| Stauroneis superkuelbsii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis superkuelbsii | | | Bahls | CAD_TWG | CSUSM |
| Stauroneis thermicola | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis thermicola | | | (Petersen) Lund | CAD_TWG | UCOB |
| Stauroneis undata | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Stauroneis | | Stauroneis undata | | | Hustedt | CAD_TWG | UCOB |
| Staurophora | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Staurophora | | | | | | CAD_TWG | CSUSM |
| Staurophora tackei | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Staurophora | | Staurophora tackei | | | (Hustedt) L.Bahls | CAD_TWG | CSUSM |
| Staurophora wislouchii | | Bacillariophyta | | | Bacillariophyceae | | | Naviculales | | | Stauroneidaceae | | | | Staurophora | | Stauroneis wislouchii | | | (Poretzsky & Anisimova) D.G.Mann | CAD_TWG | CSUSM |
| Staurosira | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosira | | | | | | CAD_TWG | UCOB |
| Staurosira binodis | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosira | | Staurosira binodis | | | Ehrenberg; Hamilton:Hamilton,Poulin,Charles,Angell | CAD_TWG | CSUSM |
| Staurosira cf binodis | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosira | | Staurosira cf binodis | | | Ehrenberg; Hamilton:Hamilton,Poulin,Charles,Angell | CAD_TWG | CSUSM |
| Staurosira cf pseudoconstruens | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosira | | Staurosira cf pseudoconstruens | | | (Marciniak) Lange-Bertalot | CAD_TWG | CSUSM |
| Staurosira construens | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosira | | Staurosira construens | | | Ehrenberg | CAD_TWG | UCOB |
| Staurosira construens var exigua | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosira | | Staurosira construens | | Staurosira construens var exigua | (W Smith) Kobayasi in Mayama, Idei, Osada & Nagumo | CAD_TWG | UCOB |
| Staurosira construens var pumila | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosira | | Staurosira construens | | Staurosira construens var pumila | (Grunow) Kingston | CAD_TWG | UCOB |
| Staurosira incerta | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosira | | Staurosira incerta | | | Morales | CAD_TWG | EcoAnalysts |
| Staurosira leptostauron | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosira | | Staurosira leptostauron | | | (Ehrenberg) Kulikovskiy & Genkal | CAD_TWG | CSUSM |
| Staurosira neoproducta | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosira | | Staurosira neoproducta | | | (Lange-Bertalot) Chudaev & Gololobova | CAD_TWG | CSUSM |
| Staurosira pseudoconstruens | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosira | | Staurosira pseudoconstruens | | | (Marciniak) Lange-Bertalot | CAD_TWG | CSUSM |
| Staurosira sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosira | | Staurosira sp 1 | | | | CAD_TWG | CSUSM |
| Staurosira subsalina | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosira | | Staurosira subsalina | | | (Hustedt) Lange-Bertalot | CAD_TWG | CSUSM |
| Staurosira venter | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosira | | Staurosira venter | | | (Ehrenberg) Cleve & J.D.Moller | CAD_TWG | CSUSM |
| Staurosirella | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | | | | | CAD_TWG | UCOB |
| Staurosirella alpestris | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella alpestris | | | (Krasske) Le Cohu | CAD_TWG | CSUSM |
| Staurosirella cf leptostauron | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella cf leptostauron | | | (Ehrenberg) Kulikovskiy & Genkal | CAD_TWG | CSUSM |
| Staurosirella cf oldenburgiana | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella cf oldenburgiana | | | (Hustedt) Morales 2005 | CAD_TWG | EcoAnalysts |
| Staurosirella cf rhomboides | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella cf rhomboides | | | (Grunow) Morales and Manoylov | CAD_TWG | CSUSM |
| Staurosirella confusa | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella confusa | | | Morales | CAD_TWG | EcoAnalysts |
| Staurosirella dubia | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella dubia | | | (Grunow) E.A.Morales & K.M.Manoylov | CAD_TWG | CSUSM |
| Staurosirella lapponica | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella lapponica | | | (Grunow in Van Heurck) Williams & Round | CAD_TWG | UCOB |
| Staurosirella martyi | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella martyi | | | (Heribaud) Morales and Manoylov | CAD_TWG | EcoAnalysts |
| Staurosirella oldenburgiana | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella oldenburgiana | | | | CAD_TWG | EcoAnalysts |
| Staurosirella pinnata | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella pinnata | | | (Ehrenberg) Williams & Round | CAD_TWG | UCOB |
| Staurosirella pinnata var intercedens | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella pinnata | | Staurosirella pinnata var intercedens | (Grunow) P.B.Hamilton | CAD_TWG | UCOB |
| Staurosirella rhomboides | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella rhomboides | | | (Grunow) Morales and Manoylov | CAD_TWG | EcoAnalysts |
| Staurosirella sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella sp 1 | | | R.Flower, V.Jones & Round | CAD_TWG | EcoAnalysts |
| Staurosirella sp 2 | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella sp 2 | | | | CAD_TWG | CSUSM |
| Staurosirella sp 3 | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella sp 3 | | | | CAD_TWG | CSUSM |
| Staurosirella sp 4 | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella sp 4 | | | | CAD_TWG | CSUSM |
| Staurosirella sp 5 | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella sp 5 | | | | CAD_TWG | CSUSM |
| Staurosirella sp 6 | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Staurosiraceae | | | | Staurosirella | | Staurosirella sp 6 | | | | CAD_TWG | CSUSM |
| Stenopterobia | | Heterokontophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Stenopterobia | | | | | | CAD_TWG | UCOB |
| Stephanodiscus | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Stephanodiscus | | | | | | CAD_TWG | UCOB |
| Stephanodiscus alpinus | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Stephanodiscus | | Stephanodiscus alpinus | | | Hustedt | CAD_TWG | EcoAnalysts |
| Stephanodiscus binderanus | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Stephanodiscus | | Stephanodiscus binderanus | | | (Kutzing) Krieger | CAD_TWG | CSUSM |
| Stephanodiscus cf minutulus | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Stephanodiscus | | Stephanodiscus cf minutulus | | | (Kutz.) Cleve & Moller | CAD_TWG | CSUSM |
| Stephanodiscus excentricus | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Stephanodiscus | | Stephanodiscus excentricus | | | | CAD_TWG | UCOB |
| Stephanodiscus hantzschii | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Stephanodiscus | | Stephanodiscus hantzschii | | | Grunow in Cleve & Grunow | CAD_TWG | UCOB |
| Stephanodiscus hantzschii f tenuis | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Stephanodiscus | | Stephanodiscus hantzschii | | Stephanodiscus hantzschii f tenuis | (Hustedt) Hakansson & Stoermer | CAD_TWG | CSUSM |
| Stephanodiscus medius | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Stephanodiscus | | Stephanodiscus medius | | | Hakansson | CAD_TWG | UCOB |
| Stephanodiscus minutulus | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Stephanodiscus | | Stephanodiscus minutulus | | | (Kutzing) Cleve & Moller | CAD_TWG | UCOB |
| Stephanodiscus niagarae | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Stephanodiscus | | Stephanodiscus niagarae | | | Ehrenberg | CAD_TWG | UCOB |
| Stephanodiscus parvus | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Stephanodiscus | | Stephanodiscus parvus | | | Stoermer & Hakansson | CAD_TWG | UCOB |
| Stephanodiscus sp 1 | | Bacillariophyta | | | Mediophyceae | | | Stephanodiscales | | | Stephanodiscaceae | | | | Stephanodiscus | | Stephanodiscus sp 1 | | | | CAD_TWG | CSUSM |
| Surirella | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | | | | | CAD_TWG | UCOB |
| Surirella amphioxys | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella amphioxys | | | Smith | CAD_TWG | UCOB |
| Surirella angusta | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella angusta | | | Kutzing | CAD_TWG | UCOB |
| Surirella bohemica | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella bohemica | | | Maly | CAD_TWG | CSUSM |
| Surirella brebissonii | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella brebissonii | | | Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Surirella brebissonii var kuetzingii | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella brebissonii | | Surirella brebissonii var kuetzingii | Krammer & Lange-Bertalot | CAD_TWG | UCOB |
| Surirella brebissonii var punctata | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella brebissonii | | Surirella brebissonii var punctata | Krammer | CAD_TWG | CSUSM |
| Surirella brightwellii | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella brightwellii | | | W Smith | CAD_TWG | UCOB |
| Surirella cf brebissonii | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella cf brebissonii | | | Krammer & Lange-Bertalot | CAD_TWG | CSUSM |
| Surirella cf tenera | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella cf tenera | | | Gregory | CAD_TWG | CSUSM |
| Surirella constricta | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella constricta | | | Ehrenberg | CAD_TWG | CSUSM |
| Surirella elegans | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella elegans | | | Ehrenberg | CAD_TWG | UCOB |
| Surirella gracilis | | Heterokontophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella gracilis | | | (W.Smith) Grunow | CAD_TWG | EcoAnalysts |
| Surirella iowensis | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella iowensis | | | Lowe | CAD_TWG | EcoAnalysts |
| Surirella lacrimula | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella lacrimula | | | J.D. English 2012 | CAD_TWG | EcoAnalysts |
| Surirella linearis var constricta | | Heterokontophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella linearis | | Surirella linearis var constricta | Grunow | CAD_TWG | UCOB |
| Surirella minuta | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella minuta | | | Brebisson | CAD_TWG | UCOB |
| Surirella ovalis | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella ovalis | | | Brebisson | CAD_TWG | UCOB |
| Surirella robusta | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella robusta | | | Ehrenberg | CAD_TWG | UCOB |
| Surirella splendida | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella splendida | | | (Ehrenberg) Kutzing | CAD_TWG | UCOB |
| Surirella stalagma | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella stalagma | | | Hohn & Hellerman | CAD_TWG | UCOB |
| Surirella striatula | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella striatula | | | Turpin | CAD_TWG | UCOB |
| Surirella suecica | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | Surirella | | Surirella suecica | | | | CAD_TWG | EcoAnalysts |
| Surirellaceae | | Bacillariophyta | | | Bacillariophyceae | | | Surirellales | | | Surirellaceae | | | | | | | | | Hustedt | CAD_TWG | EcoAnalysts |
| Synedra | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Synedra | | | | | | CAD_TWG | UCOB |
| Synedra cf goulardi | | Bacillariophyta | | | Fragilariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Synedra | | Synedra cf goulardi | | | Brebisson ex Cleve & Grunow | CAD_TWG | EcoAnalysts |
| Synedra cyclopum | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Synedra | | Synedra cyclopum | | | Brutschy | CAD_TWG | UCOB |
| Synedra famelica | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Synedra | | Synedra famelica | | | Kutzing | CAD_TWG | CSUSM |
| Synedra goulardi | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Synedra | | Synedra goulardi | | | Brébisson ex Cleve & Grunow | CAD_TWG | UCOB |
| Synedra ulna var oxyrhynchus f mediocontracta | | Bacillariophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Synedra | | Synedra ulna | | Synedra ulna var oxyrhynchus f mediocontracta | | CAD_TWG | EcoAnalysts |
| Tabellaria | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Tabellaria | | | | | | CAD_TWG | UCOB |
| Tabellaria fenestrata | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Tabellaria | | Tabellaria fenestrata | | | (Lyngbye) Kutzing | CAD_TWG | UCOB |
| Tabellaria flocculosa | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Tabellaria | | Tabellaria flocculosa | | | (Roth) Kützing | CAD_TWG | UCOB |
| Tabellaria ventricosa | | Bacillariophyta | | | Bacillariophyceae | | | Tabellariales | | | Tabellariaceae | | | | Tabellaria | | Tabellaria ventricosa | | | Kutzing | CAD_TWG | UCOB |
| Tabularia | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Ulnariaceae | | | | Tabularia | | | | | | CAD_TWG | UCOB |
| Tabularia fasciculata | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Ulnariaceae | | | | Tabularia | | Tabularia fasciculata | | | (Agardh) Williams & Round | CAD_TWG | UCOB |
| Tabularia investiens | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Ulnariaceae | | | | Tabularia | | Tabularia investiens | | | (W Smith) Williams & Round | CAD_TWG | UCOB |
| Tabularia tabulata | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Ulnariaceae | | | | Tabularia | | Tabularia tabulata | | | (Agardh) Snoeijs | CAD_TWG | UCOB |
| Terpsinoe | | Bacillariophyta | | | Mediophyceae | | | Anaulales | | | Anaulaceae | | | | Terpsinoe | | | | | | CAD_TWG | UCOB |
| Terpsinoe americana | | Bacillariophyta | | | Mediophyceae | | | Anaulales | | | Anaulaceae | | | | Terpsinoe | | Terpsinoe americana | | | (JW Bailey) Ralfs in Pritchard | CAD_TWG | UCOB |
| Terpsinoe musica | | Bacillariophyta | | | Mediophyceae | | | Anaulales | | | Anaulaceae | | | | Terpsinoe | | Terpsinoe musica | | | Ehrenberg | CAD_TWG | UCOB |
| Thalassionema | | Bacillariophyta | | | Bacillariophyceae | | | Thalassionematales | | | Thalassionemataceae | | | | Thalassionema | | | | | | CAD_TWG | CSUSM |
| Thalassionema nitzschioides | | Bacillariophyta | | | Bacillariophyceae | | | Thalassionematales | | | Thalassionemataceae | | | | Thalassionema | | Thalassionema nitzschioides | | | (Grunow) Van Heurck | CAD_TWG | UCOB |
| Thalassiosira | | Bacillariophyta | | | Mediophyceae | | | Thalassiosirales | | | Thalassiosiraceae | | | | Thalassiosira | | | | | | CAD_TWG | UCOB |
| Thalassiosira cf pseudonana | | Bacillariophyta | | | Mediophyceae | | | Thalassiosirales | | | Thalassiosiraceae | | | | Thalassiosira | | Thalassiosira cf pseudonana | | | Hasle & Heimdal | CAD_TWG | CSUSM |
| Thalassiosira lacustris | | Bacillariophyta | | | Mediophyceae | | | Thalassiosirales | | | Thalassiosiraceae | | | | Thalassiosira | | Thalassiosira lacustris | | | (Grunow) Hasle | CAD_TWG | UCOB |
| Thalassiosira levanderi | | Bacillariophyta | | | Mediophyceae | | | Thalassiosirales | | | Thalassiosiraceae | | | | Thalassiosira | | Thalassiosira levanderi | | | Van Goor | CAD_TWG | UCOB |
| Thalassiosira pseudonana | | Bacillariophyta | | | Mediophyceae | | | Thalassiosirales | | | Thalassiosiraceae | | | | Thalassiosira | | Thalassiosira pseudonana | | | Hasle & Heimdal | CAD_TWG | UCOB |
| Thalassiosira sp 1 | | Bacillariophyta | | | Mediophyceae | | | Thalassiosirales | | | Thalassiosiraceae | | | | Thalassiosira | | Thalassiosira sp 1 | | | | CAD_TWG | EcoAnalysts |
| Thalassiosira visurgis | | Bacillariophyta | | | Mediophyceae | | | Thalassiosirales | | | Thalassiosiraceae | | | | Thalassiosira | | Thalassiosira visurgis | | | Hustedt | CAD_TWG | EcoAnalysts |
| Thalassiosira weissflogii | | Bacillariophyta | | | Mediophyceae | | | Thalassiosirales | | | Thalassiosiraceae | | | | Thalassiosira | | Thalassiosira weissflogii | | | (Grunow) Fryxell & Hasle | CAD_TWG | UCOB |
| Thalassiosira gessneri | | Bacillariophyta | | | Mediophyceae | | | Thalassiosirales | | | Thalassiosiraceae | | | | Thalassiosira | | Thalassiosira gessneri | | | Hustedt | CAD_TWG | CSUSM |
| Tryblionella | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | | | | | CAD_TWG | UCOB |
| Tryblionella acuminata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella acuminata | | | W Smith | CAD_TWG | UCOB |
| Tryblionella angustata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella angustata | | | W Smith | CAD_TWG | UCOB |
| Tryblionella angustatula | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella angustatula | | | (Lange-Bertalot) Cantonati & Lange-Bertalot | CAD_TWG | CSUSM |
| Tryblionella apiculata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella apiculata | | | Gregory | CAD_TWG | UCOB |
| Tryblionella balatonis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella balatonis | | | (Grunow) D.G.Mann | CAD_TWG | CSUSM |
| Tryblionella brunoi | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella brunoi | | | (Lange-Bertalot) Cantonati & Lange-Bertalot | CAD_TWG | CSUSM |
| Tryblionella calida | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella calida | | | (Grunow) D.G.Mann | CAD_TWG | UCOB |
| Tryblionella compressa | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella compressa | | | (Bailey) Poulin | CAD_TWG | UCOB |
| Tryblionella debilis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella debilis | | | Arnott ex O'Meara | CAD_TWG | UCOB |
| Tryblionella granulata | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella granulata | | | (Grunow) Mann | CAD_TWG | EcoAnalysts |
| Tryblionella hantzschiana | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella hantzschiana | | | Grunow | CAD_TWG | CSUSM |
| Tryblionella hungarica | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella hungarica | | | (Grunow) Frenguelli | CAD_TWG | UCOB |
| Tryblionella levidensis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella levidensis | | | W Smith | CAD_TWG | UCOB |
| Tryblionella littoralis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella littoralis | | | (Grunow) D.G.Mann | CAD_TWG | UCOB |
| Tryblionella navicularis | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella navicularis | | | (Brebisson) Grunow | CAD_TWG | EcoAnalysts |
| Tryblionella salinarum | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella salinarum | | | (Grunow in Cleve & Grunow) Pelletan | CAD_TWG | UCOB |
| Tryblionella scalaris | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella scalaris | | | (Ehrenberg) Siver & Hamilton | CAD_TWG | UCOB |
| Tryblionella victoriae | | Bacillariophyta | | | Bacillariophyceae | | | Bacillariales | | | Bacillariaceae | | | | Tryblionella | | Tryblionella victoriae | | | Grunow | CAD_TWG | UCOB |
| Ulnaria | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | | | | | CAD_TWG | CSUSM |
| Ulnaria acus | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria acus | | | (Kutzing) Aboal | CAD_TWG | CSUSM |
| Ulnaria acuscypriacus | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria acucypriacus | | | Lange-Bertalot & Cantonati | CAD_TWG | CSUSM |
| Ulnaria amphirhynchus | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria amphirhynchus | | | (Ehrenberg) Compere & Bukhtiyarova | CAD_TWG | CSUSM |
| Ulnaria capitata | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria capitata | | | (Ehrenberg) Compere | CAD_TWG | CSUSM |
| Ulnaria cf acus | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria cf acus | | | (Kutzing) Aboal | CAD_TWG | CSUSM |
| Ulnaria cf ulna | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria cf ulna | | | | CAD_TWG | CSUSM |
| Ulnaria contracta | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria contracta | | | (Ostrup) E.A.Morales & M.L.Vis | CAD_TWG | Rhithron |
| Ulnaria delicatissima | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria delicatissima | | | (W.Smith) Aboal & P.C.Silva | CAD_TWG | CSUSM |
| Ulnaria delicatissima var angustissima | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria delicatissima | | Ulnaria delicatissima var angustissima | (Grunow) Aboal | CAD_TWG | EcoAnalysts |
| Ulnaria grunowii | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria grunowii | | | (Lange-Bertalot & S.Ulrich) Cantonati & Lange-Bertalot | CAD_TWG | CSUSM |
| Ulnaria oxyrhynchus | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria oxyrhynchus | | | (Kutzing) Aboal | CAD_TWG | CSUSM |
| Ulnaria ramesii | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria ramesii | | | (J. Heribaud) T.Ohtsuka | CAD_TWG | CSUSM |
| Ulnaria sp 1 | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria sp 1 | | | | CAD_TWG | CSUSM |
| Ulnaria ulna | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria ulna | | | (Nitzsch) Compere | CAD_TWG | EcoAnalysts |
| Ulnaria ulna var constricta | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria ulna | | Ulnaria ulna var constricta | Maidana & Seeligmann | CAD_TWG | CSUSM |
| Ulnaria ungeriana | | Bacillariophyta | | | Bacillariophyceae | | | Licmophorales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria ungeriana | | | (Grunow) Compere | CAD_TWG | EcoAnalysts |
| Ulnaria ulna var spathulifera | | Heterokontophyta | | | Bacillariophyceae | | | Fragilariales | | | Fragilariaceae | | | | Ulnaria | | Ulnaria ulna | | Ulnaria ulna var spathulifera | (Grunow) Aboal in Aboal, Alvarez Cobelas, Cambra & Ector | CAD_TWG | CSUSM |