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Cyanophyceae: Chroococcales: Chroococcaceae
Cyanophyceae: Chroococcales: Microcystaceae

Microcystis flos-aquae
(Wittrock) Kirchner

Microcystis 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).


Microcystis flos-aquae (Wittrock) Kirchner ?, cell body nearly spherical, 6-7 μm in diam., x 640, Showa Memorial Park, Tachikawa-ku, Tokyo, Japan, November 2001 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
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