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Diatoms of North America

Practitioners
Morphology
Genera
Species
Glossary
About Us
What are diatoms?

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Species

11-100

101-1000

1001-10000

10001-100000

100001-1000000

Non-motile

Weakly motile

Slightly motile

Moderately motile

Highly motile

Unattached

Prostrate

Tube-Forming

Vertical

Soils

Moist habitats

Benthic

Planktonic

Rivers

Lakes

Wetlands

Springs

Splash zones

Estuaries

Neritic

Sea Ice

Solitary

Colonies occasional

Colonies common

BCG 1

BCG 2

BCG 3

BCG 4

BCG 5

Western rivers 2004

Southeast rivers 2014

Northeast rivers 2016

Northwest rivers 2015

California coastal rivers 2017

Northeast lake sediments

Nat. Eco. Obs. Network (NEON)

Great Lakes inventory

Nitrogen Fixer

Nitrogen Fixer

Rare

Rare

Extinct

Extinct

Displaying 46 of 1105 species

GC Genus Considered

Waterbody Sort

Anomoeoneis
Anomoeoneis sphaerophora
Anomoeoneis costata

Brachysira
Brachysira subtilis
Brachysira confusa

Caloneis
Caloneis fusus

Caponea
Caponea caribbea

Cavinula
Cavinula variostriata

Chamaepinnularia
Chamaepinnularia krasskei
Chamaepinnularia gandrupii
Chamaepinnularia krookii

Craticula
Craticula cuspidata

Cylindrotheca
Cylindrotheca gracilis

Cymbopleura
Cymbopleura subaequalis
Cymbopleura laszlorum
Cymbopleura stauroneiformis

Diploneis
Diploneis mollenhaueri

Encyonema
Encyonema silesiacum var. elegans

Epithemia
Epithemia alpestris

Eunotia
Eunotia pseudoparallela

Gomphonema
Gomphonema eileencoxiae
Gomphonema vibrioides

Hantzschia
Hantzschia amphioxys

Humidophila
Humidophila contenta

Luticola
Luticola hamiltonii

Neidium
Neidium hercynicum
Neidium bisulcatum
Neidium sacoense
Neidium fossum
Neidium iridis

Nitzschia
Nitzschia serpentiraphe

Pinnularia
Pinnularia divergentissima
Pinnularia borealis
Pinnularia subgibba var. lanceolata
Pinnularia turfosiphila
Pinnularia socialis
Pinnularia streptoraphe
Pinnularia transversa
Pinnularia pulchella var. canadensis
Pinnularia pulchella

Seminavis
Seminavis eulensteinii

Stauroneis
Stauroneis thermicola
Stauroneis staurolineata
Stauroneis alabamae
Stauroneis kingstonii
Stauroneis terryi

Ulnaria
Ulnaria capitata

Diatoms of North America

The source for diatom identification and ecology

Cite as: Spaulding et al. 2021. Diatoms.org: supporting taxonomists, connecting communities. Diatom Research 36(4): 291-304. https://doi.org/10.1080/0269249X.2021.2006790

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Practitioners
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