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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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Gomphoneis_int.jpg
Glossary Term
Stigma
Caption
SEM image of an internal view of the stigma of
Gomphoneis herculeana
. The internal opening of the stigma has the shape of a slit.
Credit
Sarah Spaulding
