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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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Psammothidium_sacculum_ANSP_GC8223A_33.jpg
Species
Psammothidium sacculum
Site ID
Patrick and Freese (1961) Station 107
Name
Freshwater pool at Driftwood, Alaska
Caption
raphe valve
Scalebar = 10 µm
