| Valonia | |
|---|---|
| A Valonia species cultivated in an aquarium | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Viridiplantae |
| Phylum: | Chlorophyta |
| Class: | Ulvophyceae |
| Order: | Cladophorales |
| Family: | Valoniaceae |
| Genus: | Valonia |
| Species | |
Valonia is a genus of green algae, in the Valoniaceae family. The cells have multiple nuclei and many chloroplasts, each with a pyrenoid. The cells of some species are very large, up to 2 cm in diameter. In some species the colonies maintain a symmetrical shape but in others they do not. Some species have been extensively used for studies of ion-exchange and water potential across biological membranes.