Penium
| Penium | |
|---|---|
| Penium polymorphum | |
| Scientific classification | |
| Kingdom: | Plantae | 
| Class: | Zygnematophyceae | 
| Order: | Desmidiales | 
| Family: | Peniaceae | 
| Genus: | Penium Bréb. ex Ralfs | 
| Species | |
| 
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Penium is a genus of green algae, and the sole member of the family Peniaceae. The genus contains about 39 species.