Domain:  Eukaryota
Kingdom: Plantae
Division:  Chlorophyta
Class:  Chlorophyceae
Order:  Chlorococcales
Family:  Chlorococcaceae
Genus: Chlorococcum
Commonly found in:   Freshwater
Reproduction:     With help of zoospores

Chlorococcum are unicellular green algae, spherical in shape with single chloroplast. They have ability to form biofilms on wet surfaces. They move in circular manner. They help in photosynthesis and produce oxygen in ecosystem.