| WebNameShort | |
| Cymbella amphicephala var. genuina Mayer 1919 |
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| Cymbella angustata var. capitata Mayer 1919 |
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| Cymbella delicatula var. capitata Mayer 1919 |
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| Cymbella leptoceras f. curta "Grunow" Mayer 1919 |
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| Cymbella leptoceros f. genuina Mayer 1919 |
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| Cymbella leptoceros f. minor Mayer 1919 |
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| Cymbella microcephala var. rostellata Mayer 1919 |
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| Cymbella rupicola var. genuina Mayer 1919 |
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| Cymbella rupicola var. rostrata Mayer 1919 |
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| Denticula tenuis var. genuina Mayer 1919 |
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| Diatoma tenue var. inflata Mayer 1919 |
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| Diatoma vulgare f. tenuicollis Mayer 1919 |
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| Diploneis didyma f. linearis Mayer 1919 |
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| Diploneis didyma f. linearis Mayer 1919 |
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| Diploneis didyma f. subinflata Mayer 1919 |
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| Diploneis didyma f. typica Mayer 1919 |
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| Fragilaria brevistriata var. linearis Mayer 1919 |
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| Fragilaria construens f. subrotunda (Mayer) Mayer 1919 |
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| Fragilaria construens var. subrotunda (Mayer) Mayer 1919 |
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| Fragilaria construens f. undulata Mayer 1919 |
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