| WebNameShort | |
| Cocconeis placentula f. minutissima Mayer 1913 |
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| Cymatopleura solea f. lata Mayer 1913 |
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| Cymatopleura solea f. minuta Mayer 1913 |
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| Cymbella cistula var. eucistula Mayer 1913 |
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| Cymbella cistula f. recta Mayer 1913 |
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| Cymbella cistula f. truncata Mayer 1913 |
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| Cymbella cistula f. typica (Meister) Mayer 1913 |
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| Cymbella cistula f. undulata Mayer 1913 |
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| Cymbella ehrenbergii var. naviculoides Mayer 1913 |
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| Cymbella ehrenbergii f. ornata Mayer 1913 |
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| Cymbella gastroides var. genuina Mayer 1913 |
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| Cymbella tumida var. genuina (Grunow) Mayer 1913 |
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| Cymbella ventricosa var. genuina Mayer 1913 |
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| Cymbella ventricosa f. minuta (Hilse in Rabenhorst) Mayer 1913 |
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| Diatoma anceps var. curtum Mayer 1913 |
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| Diatoma anceps var. longissima (Grunow) Mayer 1913 |
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| Diploneis elliptica Mayer 1913 |
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| Diploneis ovalis var. genuina Mayer 1913 |
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| Diploneis ovalis f. genuina Mayer 1913 |
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| Diploneis ovalis var. genuina Mayer 1913 |
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