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Chlorophyceae: Chlorococcales: Scenedesmaceae

Tetrastrum heterocanthum
(Nordstedt) Chodat

Tetrastrum Genus: Planktonic; colony of 4 cells; cell body spherical, covered with elongated spiny projections; cells attached with each other arranging cruciform on a plane, with a small space at the center of the colony; a single chloroplast plate-like, with a pyrenoid (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).

Tetrastrum heterocanthum (Nordstedt) Chodat, cell body μm long, μm wide, x 640, O-ike (pond), O-ike park, Yabuki town, Fukushima Pref., Japan, August 2003, by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Tetrastrum heterocanthum Tetrastrum heterocanthum Tetrastrum heterocanthum

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