Genus: A colony of spherical cells; each cell is not covered with a sheath,
instead cells are scattered within a gelatinous matrix; the distance between cells is
usually shorter than their diameter
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Cell body spherical, 3.5-4.8 (5.8) ╨m in diam.,
(Süßwasserflora von Mitteleuropa 19/1, Cyanoprokaryota I, Chroococcales, 1999).
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