- Bacillariophyta
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- Bacillariophyceae
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- Bacillariales
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- Bacillariaceae
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- Nitzschia
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- Nitzschia sigma
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- Nitzschia sigma var. rigida
Nitzschia sigma var. rigida
(Kützing) Grunow
- Omnidia : NSRG
- Sandre : 16500
- Uploaded pictures: 0
