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Diatoms of North America
Practitioners
Morphology
Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
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What are diatoms?
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ILL_streams.jpg
Species
Nitzschia sigmoidea
Caption
Two streams contained Nitzschia sigmoidea near Iowa Lakeside Lab. The streams are only a few meters apart and exhibited similar pH, conductivity and temperature.
Credit
Stephanie Robson
