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Diatoms of North America
Practitioners
Morphology
Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
Surirelloid
Genera
Species
Glossary
About Us
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Projects
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What are diatoms?
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Stephanodiscus_domed_cribra.jpg
Glossary Term
Process
|
Cribrum
Caption
Internal view of
Stephanodiscus
valve showing rows of areolae covered with domed cribra (SEM). Arrow designates a single areola. Fultoportulae are also visible.
Credit
Sarah Spaulding
