| WebNameShort | |
| Eunotia pectinalis f. undulata Mayer 1917 |
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| Eunotia pectinalis f. ventricosa (Grunow in Van Heurck) Mayer 1917 |
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| Eunotia praerupta f. curta (Grunow in Van Heurck) Mayer 1917 |
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| Eunotia praerupta var. platycephala Mayer 1917 |
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| Eunotia tridentula f. quadridentata Mayer 1917 |
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| Eunotia tridentula var. quadridentata Mayer 1917 |
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| Fragilaria acuta sensu Mayer 1917 |
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| Fragilaria bicapitata Mayer 1917 |
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| Fragilaria bicapitata var. curta Mayer 1917 |
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| Fragilaria bicapitata var. genuina Mayer 1917 |
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| Fragilaria brevistriata var. acuta Mayer 1917 |
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| Fragilaria brevistriata var. undulata Mayer 1917 |
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| Fragilaria construens f. rhomboidalis (Mayer) Mayer 1917 |
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| Fragilaria construens var. rhomboidalis Mayer 1917 |
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| Fragilaria construens f. subrotunda Mayer 1917 |
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| Fragilaria harrisonii var. woerthensis Mayer 1917 |
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| Fragilaria virescens var. acuminata Mayer 1917 |
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| Fragilaria virescens var. birostrata Mayer 1917 |
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| Fragilaria virescens var. constricta Mayer 1917 |
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| Frustulia saxonica var. capitata Mayer 1917 |
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