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Gamophyceae: Zygnematales: Desmidiaceae

Staurastrum alternans
var. subalternans Maskell

Staurastrum alternans Genus: Cell body short, radiate in shape; apical view of the cell, triangular, polygonal, ellipsoidal or spindle-shaped; zygospores formed outside of mother cells (Illustrations of The Japanese Fresh-water Algae, 1977)
Subgenus: lacks arm-like projections (Illustrations of The Japanese Fresh-water Algae, 1977)

Species: semicells twisted with each other at isthmus (Illustrations of The Japanese Fresh-water Algae, 1977)


Staurastrum alternans var. subalternans Maskell, cell body ?? μm long, 25 μm wide, L/W=, isthmus μm wide, x 640, rice field near Happou bus stop, Hakuba village, Nagano Pref., Japan, August 11, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Staurastrum Staurastrum Staurastrum

Images of collecting locality: Rice field near Happou bus stop, Hakuba village, Nagano Pref., Japan, August 11, 2006 by Y. Tsukii


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