Radiococcus is a genus of green algae in the family Radiococcaceae.See the NCBI webpage on Radiococcus. Data extracted from the It is found in the plankton of freshwater habitats.
Radiococcus consists of colonies of cells embedded in a mucilage; the mucilage may have radial striations. Cells are 3–15 μm in diameter, often grouped into tetrads or arranged in a ring. The cell walls are mostly smooth, although in some species they may be warty (verrucose). Cells have a single nucleus and a single parietal chloroplast with one pyrenoid.
Radiococcus reproduces asexually via the formation of autospores. Four to eight autospores are produced per sporangium; they are released when the mother cell wall fragments. Cell wall fragments remain in the mucilage for some time before dissolving.
Radiococcus is considered an ill-defined genus in need of taxonomic revision. It is similar to Planktosphaeria, which has multiple chloroplasts per cell, and Korschpalmella, which lacks pyrenoids.
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