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Chlorophyceae: Chlorococcales: Chlorococcaceae (Characiaceae)

 Characium sp.

Characium Genus: Unicellular; cell body ellipsoidal or spindle-shaped, attached on a substrate at one end; a single chloroplast plate-like in shape, with a pyrenoid (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species:
Similar genus --> > Colacium; Characiopsis; Characiochloris; Hydiranum;

Characium sp., cell body spindle-shaped, 13 μm long, 3 μm wide, L/W=, x 640, a small pond near Shide-numa (pond), near Watarase-yusuichi (Watarase wetland), Kita-kawabe town, Saitama Pref., April 10, 2005 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Characium Characium Characium Characium Characium Characium

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