| WebNameShort | |
| Neidium dubium f. major Fontell 1917 |
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| Nitzschia angustata sensu Fontell 1917 |
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| Pinnularia dactylus f. medioconstricta Fontell 1917 |
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| Pinnularia dactylus var. medioconstricta Fontell 1917 |
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| Pinnularia divergens f. linearis Fontell 1917 |
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| Pinnularia divergentissima var. capitata Fontell 1917 |
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| Pinnularia episcopalis var. robusta Fontell 1917 |
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| Pinnularia gracillima var. interrupta Fontell 1917 |
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| Pinnularia jemtlandica (jamtlandica) Fontell 1917 |
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| Pinnularia microstauron f. longirostris Fontell 1917 |
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| Pinnularia parallela var. linearis (Østrup) Fontell 1917 |
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| Pinnularia stomatophora f. triundulata Fontell 1917 |
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| Pinnularia stomatophora f. triundulata Fontell 1917 |
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| Pinnularia subcapitata var. robusta Fontell 1917 |
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| Pinnularia viridis f. ornata Fontell 1917 |
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| Stauroneis anceps f. lata Fontell 1917 |
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| Stenopterobia intermedia var. capitata Fontell 1917 |
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| Surirella linearis f. nuda Fontell 1917 |
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| Surirella robusta f. constricta Fontell 1917 |
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| Surirella robusta f. magnipunctata Fontell 1917 |
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