| WebNameShort | |
| Nitzschia subtilis (Kützing) Grunow in Cleve & Grunow 1880 |
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| Achnanthidium flexellum var. arcticum (Lagerstedt) Grunow in Cleve & Grunow 1880 |
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| Navicula cancellata var. impressa (Lagerstedt) Cleve & Grunow 1880 |
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| Hyalodiscus radiatus (O'Meara) Grunow in Cleve & Grunow 1880 |
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| Nitzschia tryblionella var. subsalina (O'Meara) Grunow in Cleve & Grunow 1880 |
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| Hyalodiscus radiatus var. maxima (Petit) Cleve & Grunow 1880 |
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| Navicula placentula var. anglica (Ralfs in Pritchard) Grunow in Cleve & Grunow 1880 |
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| Achnanthidium flexellum var. naviculoides (Reinsch) Grunow in Cleve & Grunow 1880 |
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| Hantzschia virgata (Roper) Grunow in Cleve & Grunow 1880 |
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| Navicula amphisbaena var. fuscata (Schumann) Grunow in Cleve & Grunow 1880 |
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| Cocconema cymbiforme var. parvum (Smith) Cleve 1880 |
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| Nitzschia sinuata (Thwaites in W. Smith) Grunow in Cleve & Grunow 1880 |
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| Pleurosigma eximium (Thwaites) Grunow in Cleve & Grunow 1880 |
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| Achnanthes linearis (W. Smith) Grunow in Cleve & Grunow 1880 |
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| Achnanthidium flexellum var. dissimile (W. Smith) Grunow in Cleve & Grunow 1880 |
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| Nitzschia linearis var. tenuis (W. Smith) Grunow in Cleve & Grunow 1880 |
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| Nitzschia tryblionella var. levidensis (W. Smith) Grunow in Cleve & Grunow 1880 |
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| Cocconema stomatophorum var. fossilis [Grunow] in Cleve & Grunow 1880 |
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| Cocconema stomatophorum var. genuina [Grunow] in Cleve & Grunow 1880 |
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| Cocconema stomatophorum var. gibba [Grunow] in Cleve & Grunow 1880 |
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