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Diatoms of North America
Practitioners
Morphology
Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
Surirelloid
Genera
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Glossary
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What are diatoms?
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nls00244_06.jpg
Species
Aulacoseira humilis
Site ID
ANSP NLS00244
Caption
Frustule with convex valve faces
Scalebar = 2 µm
