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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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alveoli.jpg
Glossary Term
Alveolus
Caption
External view of distal end of a
Pinnularia
valve (SEM) with alveolate striae. Each stria is composed of an alveolus covered by a plate of many fine pores.
Credit
S. Spaulding
