| WebNameShort | |
| Navicula clavata f. proxima (Janisch in Schmidt et al.) Hustedt 1964 |
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| Navicula clavata f. rhombica (Cleve) Hustedt 1964 |
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| Navicula clavata f. subconstricta Hustedt 1964 |
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| Navicula crebra Hustedt 1964 |
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| Navicula disclusa Hustedt 1964 |
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| Navicula discreta Hustedt 1964 |
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| Navicula disposita Hustedt 1964 |
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| Navicula dithmarsica König ex Hustedt 1964 |
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| Navicula durandii (durrandii) f. rhomboidea (Castracane) Hustedt 1964 |
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| Navicula explanata Hustedt 1964 |
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| Navicula explicata Hustedt 1964 |
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| Navicula explicatoides Hustedt 1964 |
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| Navicula fundata Hustedt 1964 |
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| Navicula hennedyella Hustedt 1964 |
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| Navicula hennedyi f. typica Hustedt 1964 |
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| Navicula hennedyi (hennedii) f. bacillifera (Cleve) Hustedt 1964 |
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| Navicula hennedyi (hennedii) f. californica (Greville) Hustedt 1964 |
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| Navicula hennedyi (hennedii) f. couperi (couperii) (J.W. Bailey) Hustedt 1964 |
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| Navicula hennedyi (hennedii) f. cuneata (Schmidt in Schmidt et al.) Hustedt 1964 |
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| Navicula hennedyi (hennedii) f. furcata (Peragallo & Peragallo) Hustedt 1964 |
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