Freshwater Diatoms of North America
Achnanthes
Achnanthidium
Actinella
Adlafia
Amphora
Asterionella
Aulocoseira
Brachysira
Caloneis
Cavinula
Chamaepinnularia
Cocconeis
Craticula
Ctenophora
Cyclostephanos
Cyclotella
Cymbella
Denticula
Diploneis
Encyonema
Encyonopsis
Eolimna
Epithemia
Eucocconeis
Eunotia
Fragilaria
Fragilariforma
Frustulia
Geissleria
Gomphonema
Gyrosigma
Hippodonta
Karayevia
Krasskella
Kobayasiella
Luticola
Meridion
Navicula
Neidium
Nitzschia
Nupela
Oxyneis
Peronia
Pinnularia
Plagiotropis
Planothidium
Psammothidium
Pseudostaurosira
Pseudostaurosiropsis
Puncticulata
Punctastriata
Rossithidium
Rhizosolenia
Rhopalodia
Sellaphora
Semiorbis
Stauroforma
Stauroneis
Staurosira
Staurosirella
Stenopterobia
Stephanodiscus
Surirella
Synedra
Tabellaria
Tryblionella
Ulnaria