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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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What are diatoms?
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Gomphonema_semiapertum_map.jpg
Species
Gomphonema semiapertum
Caption
Distribution of
Gomphonema semiapertum
based on samples in the Montana Diatom Collection.
Credit
Google Earth
