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Xanthophyceae: Mischococcales: Pseudostaurastrumceae

 Pseudostaurastrum hastatum
(Reinsch) Chodat

Pseudostaurastrum Genus: Unicellular; planktonic; cell body guadrangular, each corner drawn out and branched two times forming 2-3 short, thick projections; many chloroplasts disc-shaped, without pyrenoids (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species:
Similar genus -->> Staurastrum; Tetraedron;

Pseudostaurastrum hastatum (Pleurochloridaceae, Mischococcales, Xanthophyceae), cell body μm long, 43 μm long, x 400, x 640, Mizumoto Park, Katsushika-ku, Tokyo (or Koshigaya, Saitama Pref. ?), Japan, July 2001 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Pseudostaurastrum
Pseudostaurastrum Pseudostaurastrum Pseudostaurastrum Pseudostaurastrum

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