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Diatoms of North America
Practitioners
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Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
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STparvus_Distribution.png
Species
Stephanodiscus parvus
Caption
The record of
Stephanodiscus parvus
in streams and rivers of the continental United States.
Credit
USGS/Biodata