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Diatoms of North America
Practitioners
Morphology
Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
Surirelloid
Genera
Species
Glossary
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What are diatoms?
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HYwhamp-ILL-2013-132-1-hemivalve.jpg
Glossary Term
Hemivalve
Caption
Valve of
Hydrosera whampoensis
, a polar centric diatom. Red line separates the hemivalves. Scale bar = 10 µm.
Credit
Steve Main
