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Diagnostic features

Unicellular or colonial chlorophyte with small crescent-shaped cells, each containing a green parietal chloroplast with pyrenoid. Several cells may cluster together to form a disorganised colony, which is not bound in mucilage.

Typical habitats

Found in the plankton of nutrient-rich ponds including sewage ponds


Kingdom Plantae
Phylum Chlorophyta
Class Trebouxiophyceae
Order Chlorellales
Family Oocystaceae
Common name Green algae