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Gamophyceae: Zygnematales: Desmidiaceae

 Staurastrum hantzii
Reinsch var. japonicum Roy et Bisset

Staurastrum forficulatum Section: Radiatiformes (Apexes of semicells with projections; arm-like projections smooth) (Illustrations of The Japanese Fresh-water Algae, 1977) .
Species: Cell body small 22-28 μm long (excluging arm-like projections) (cf. S. leptacanthum 36-56 μm long) (Illustrations of The Japanese Fresh-water Algae, 1977) .
Similar species -- >> S. leptacanthum; S. sexangulare;

Staurastrum hantzii Reinsch var. japonicum Roy et Bisset (similar to Staurastrum forficulatum var. verrucosum Grönblad), cell body 30 μm long (excluding arms), μm wide, L/W=, isthmus μm wide, x 640, Kareki-numa marsh, Nikko city (formerly Fujiwara town), Tochigi Pref., Japan, September 24, 2008 collected by Eizaburo Tsukii, photo by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Staurastrum forficulatum Staurastrum forficulatum Staurastrum forficulatum

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