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Xanthophyceae: Mischococcales: Pseudostaurastrumceae

 Pseudostaurastrum lobulatum
(Nägeli) 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 lobulatum (Nägeli) Chodat (Pleurochloridaceae, Mischococcales, Xanthophyceae), 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
Pseudostaurastrum Pseudostaurastrum Pseudostaurastrum Pseudostaurastrum

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