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Cyanophyceae: Chroococcales: Chroococcaceae

 Chroococcus pallidus
Nägeli

Chroococcus Genus: Unicells or a colony of spherical cells covered with a distinct sheath.
Species: Colonies consisting of many cells lacking definite layers; colonies formed by small subsets of 2, 4 or 8 cells; cell body (excluding sheath) larger than 5 μm in diameter (6 - 11 μm) (Illustrations of The Japanese Fresh-water Algae, 1977).

Chroococcus pallidus Nägeli, cell body 11 μm long, 10 μm wide, L/W=1.1, gelatinous coats 6 μm in thickness, x 640, Kenashitai (marsh), Hakkoda mountain, Aomori city, Aomori Pref., Japan, July 17, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Chroococcus Chroococcus

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