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Chlorophyceae: Chlorococcales: Scenedesmaceae

Unidentified sp.

Unidentified Genus:

Scenedesmus asymmetricus (Schroeder) Chodat (by G.E. Dillard, 1989) or Scenedesmus heimii Bourrelly 1950 or similar species ?, cell body swelled at the center, 18 μm long, 5 μm wide, both ends rounded, outer cells with two spines at both ends, additional spines emerging from the center of the cell body, perpendicular to the plane of colony, x 640, Omine-numa (pond/marsh), Tsukiyono town, Gunma Pref., Japan, September 2003 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
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