| WebNameShort | |
| Frustulia rhomboides var. crassinervia (Brébisson in W. Smith) Ross 1947 |
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| Pinnularia biceps f. stauroneiformis (Cleve) Ross 1947 |
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| Melosira dendroteres (Ehrenberg) Ross 1947 |
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| Cymbella angustata var. linearis (Fontell) Ross 1947 |
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| Cymbella subaequalis var. oblonga (Fontell) Ross 1947 |
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| Neidium longiceps (Gregory) Ross 1947 |
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| Caloneis silicula var. subundulata (Grunow in Cleve & Grunow) Ross 1947 |
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| Cymbella scotica var. incerta (Grunow in Cleve & Möller) Ross 1947 |
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| Cymbella scotica var. naviculacea (Grunow in Cleve) Ross 1947 |
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| Cymbella angustata var. hybrida (Grunow in Schmidt et al.) Ross 1947 |
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| Eunotia perpusilla var. perminuta (Grunow in Van Heurck) Ross 1947 |
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| Fragilaria vaucheriae var. capitellata (Grunow in Van Heurck) Ross 1947 |
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| Navicula variabilis var. gomphonemacea (Grunow in Van Heurck) Ross 1947 |
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| Pinnularia fasciata var. inconstantissima (Grunow in Van Heurck) Ross 1947 |
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| Navicula capitata var. hungarica (Grunow) Ross 1947 |
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| Neidium iridis var. majus (Grunow) Ross 1947 |
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| Diploneis oblongella var. ovalis (Hilse in Rabenhorst) Ross 1947 |
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| Synedra ulna var. recta (Kützing) Ross 1947 |
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| Cymbella ventricosa var. semicircularis (Lagerstedt) Ross 1947 |
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| Diploneis oblongella (Naegeli in Kutzing) Ross 1947 |
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