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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
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What are diatoms?
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Neidium_iridis_Apical_helictoglossa.jpg
Species
Neidium iridis
Caption
A view of the helictoglossa at a deep level of focus. Scale Bar = 10 µm.
Credit
Lane Allen
