| WebNameShort | |
| Achnanthes thienemannii Hustedt 1942 |
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| Cymbella leptoceros (leptoceras) var. rostrata Hustedt 1942 |
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| Denticula bacillum Hustedt 1942 |
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| Denticula linearis Hustedt 1942 |
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| Denticula parva Hustedt 1942 |
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| Epithemia sorex var. lapponica Hustedt 1942 |
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| Navicula abiskoensis Hustedt 1942 |
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| Navicula bryophila var. lapponica Hustedt 1942 |
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| Navicula jaernefeltii Hustedt 1942 |
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| Navicula laticeps Hustedt 1942 |
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| Navicula naumanni (naumannii) Hustedt 1942 |
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| Navicula pseudobryophila Hustedt 1942 |
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| Navicula pseudosilicula Hustedt 1942 |
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| Navicula rivularis Hustedt 1942 |
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| Navicula seminulum var. intermedia Hustedt 1942 |
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| Navicula tenuicephala Hustedt 1942 |
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| Navicula tuscula f. angulata Hustedt 1942 |
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| Neidium iridis f. rostrata Hustedt 1942 |
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| Nitzschia amphibioides Hustedt 1942 |
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| Nitzschia denticuloides Hustedt 1942 |
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