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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
About Us
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What are diatoms?
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Achnanthidium-thienimannii-LM5.jpg
Species
Achnanthidium thienemannii
Slide Number
ANSP GC8217A
Site ID
Station No. 101 (Patrick and Freese 1961)
Name
Driftwood, pool on bed of Utukak river, Alaska
Caption
Rapheless valve
Scalebar = 10 µm
