Genera - Diatoms of North America

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Acanthoceras

Achnanthes

Achnanthidium

Actinella

Actinocyclus

Adlafia

Afrocymbella

Amicula

Amphicampa

Amphipleura

Amphora

Amphorotia

Aneumastus

Anomoeoneis

Anorthoneis

Ardissonea

Asterionella

Aulacoseira

Bacillaria

Bacteriastrum

Biremis

Boreozonacola

Brachysira

Brebissonia

Brevilinea

Brevisira

Caloneis

Campylodiscus

Capartogramma

Caponea

Cavinula

Chaetoceros

Chamaepinnularia

Climaconeis

Cocconeis

Coscinodiscus

Cosmioneis

Craspedostauros

Craticula

Crenotia

Ctenophora

Cyclostephanos

Cyclotella

Cylindrotheca

Cymatopleura

Cymatosira

Cymbella

Cymbellafalsa

Cymbellonitzschia

Cymbopleura

Decussata

Delicatophycus

Denticula

Diadesmis

Diatoma

Diatomella

Dictyoneis

Didymosphenia

Diploneis

Diprora

Discostella

Distrionella

Ellerbeckia

Encyonema

Encyonopsis

Entomoneis

Envekadea

Eolimna

Epithemia

Eucocconeis

Eunotia

Eupodiscus

Fallacia

Fistulifera

Fragilaria

Fragilariforma

Frickea

Frustulia

Gato

Geissleria

Genkalia

Gliwiczia

Gogorevia

Gomphoneis

Gomphonella

Gomphonema

Gomphosinica

Gomphosphenia

Grammatophora

Grunowia

Guinardia

Gyrosigma

Halamphora

Hannaea

Hantzschia

Haslea

Hippodonta

Homoeocladia

Humidophila

Hydrosera

Hygropetra

Iconella

Karayevia

Kobayasiella

Krasskella

Kurtkrammeria

Lacustriella

Lemnicola

Licmophora

Lindavia

Luticola

Lyrella

Mastogloia

Mayamaea

Melosira

Meridion

Microcostatus

Microfissurata

Microtabella

Minidiscus

Muelleria

Nanofrustulum

Navicula

Navicymbula

Neidiomorpha

Neidiopsis

Neidium

Neofragilaria

Ninastrelnikovia

Nitzschia

Nupela

Odontidium

Oricymba

Orthoseira

Oxyneis

Parlibellus

Peronia

Petroneis

Pinnularia

Pinnunavis

Placoneis

Plagiotropis

Planothidium

Platessa

Playaensis

Pleurosigma

Pleurosira

Pliocaenicus

Podocystis

Prestauroneis

Proschkinia

Psammodictyon

Psammothidium

Pseudo-nitzschia

Pseudofallacia

Pseudostaurosira

Pseudostaurosiropsis

Pulchellophycus

Punctastriata

Puncticulata

Reimeria

Rexlowea

Rhoicosphenia

Rhopalodia

Rossithidium

Scoliopleura

Sellaphora

Seminavis

Semiorbis

Simonsenia

Skabitschewskia

Skeletonema

Spicaticribra

Stauroforma

Stauroneis

Staurophora

Staurosira

Staurosirella

Stenopterobia

Stephanocyclus

Stephanodiscus

Strelnikoviella

Surirella

Synedra

Tabellaria

Tabularia

Terpsinoë

Tetracyclus

Tetramphora

Thalassionema

Thalassiophysa

Thalassiosira

Tibetiella

Trieres

Tryblionella

Tursiocola

Ulnaria

Urosolenia

Zygoceros