Chroococcus is a genus of cyanobacteria belonging to the family Chroococcaceae.

As a result of recent genetic analyses, several new genera were erected from this genus: e.g., Limnococcus.

The genus has a cosmopolitan distribution.

Species:

Chroococcus batavus Chroococcus cimneticus Chroococcus cohaerens Chroococcus dispersus Chroococcus hansgirgi Chroococcus minor Chroococcus minutus Chroococcus turgidus Chroococcus yellowstonensis References