| WebNameShort | |
| Achnanthes obliqua (Gregory) Hustedt 1924 |
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| Eucocconeis lapponica Hustedt 1924 |
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| Eunotia papilio f. minor Hustedt 1924 |
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| Eunotia pseudopectinalis Hustedt 1924 |
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| Frustulia styriaca var. subrostrata Hustedt 1924 |
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| Navicula hambergi (hambergii) Hustedt 1924 |
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| Navicula heufleriana var. septentrionalis Hustedt 1924 |
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| Navicula soehrensis (sohrensis) var. septentrionalis Hustedt 1924 |
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| Nitzschia intermedia var. robusta Hustedt 1924 |
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| Nitzschia regula var. robusta Hustedt 1924 |
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| Pinnularia intermedia sensu Hustedt 1924 |
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| Pinnularia interrupta var. minutissima Hustedt 1924 |
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| Pinnularia undulata f. stauroneiformis Hustedt 1924 |
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| Stauroneis obtusa var. lapponica Hustedt 1924 |
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| Surirella lemmermanni Hustedt 1924 |
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