| Cosmarium turpinii; focal plane on the center of the cell. C. turpinii is a species with flattened apices and 4 conspicuous pyrenoids (arrrows). |
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| Cosmarium turpinii; focal plane on the cell surface. |
| Location: Water reservoir Wuppertalsperre |
| Habitat: Periphyton / detritus |
| Date: 15.09.2014 |
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