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Diatoms of North America
Practitioners
Morphology
Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
Surirelloid
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What are diatoms?
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A_crassipunctata_areolae_lm.jpg
Glossary Term
Areola
Caption
Valve mantle of
Aulacoseira crassipunctata
showing many round areolae (LM).
Credit
Marina Potapova
