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| Cocconeis amygdalina f. major Grunow in Van Heurck 1880 |
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| Cocconeis amygdalina f. minor Grunow in Van Heruck 1880 |
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| Cocconeis amygdalina f. minor Grunow in Van Heurck 1880 |
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| Cocconeis californica (Grunow in Cleve & Möller) Grunow in Van Heurck 1880 |
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| Cocconeis californica Grunow in Van Heurck 1880 |
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| Cocconeis californica f. subcontinua Grunow in Van Heurck 1880 |
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| Cocconeis costata var. hexagona Grunow in Van Heurck 1880 |
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| Cocconeis costata var. pacifica Grunow 1880 |
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| Cocconeis cyclophora Grunow in Van Heurck 1880 |
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| Cocconeis diaphana var. amygdalina Brebisson manuscript, Van Heurck 1880 |
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| Cocconeis dirupta var. antarctica Grunow in Van Heurck 1880 |
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| Cocconeis dirupta var. flexella (Janisch & Rabenhorst) Grunow in Van Heurck 1880 |
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| Cocconeis dirupta f. parva Grunow in Van Heurck 1880 |
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| Cocconeis lineata var. euglypta (Ehrenberg) Grunow in Van Heurck 1880 |
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| Cocconeis molesta f. angusta Grunow in Van Heurck 1880 |
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| Cocconeis molesta var. crucifera Grunow in Van Heurck 1880 |
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| Cocconeis molesta f. major Grunow in Van Heurck 1880 |
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| Cocconeis molesta f. minor Grunow in Van Heurck 1880 |
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| Cocconeis scutelliformis Grunow in Van Heurck 1880 |
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| Cocconeis scutellum var. ampliata Grunow in Van Heurck 1880 |
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