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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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Pleurosigma-delicatulum-LM4-SIA.jpg
Species
Pleurosigma delicatulum
Caption
The striae intersection angle is quantified as the angle formed by the intersection of the oblique striae along the apical axis (Sterrenburg, 2002).
Credit
Lane Allen
