image_list image_listE

Gamophyceae: Zygnematales: Desmidiaceae

 Staurastrum polymorphum
var. pygmaeum Grönblad

Staurastrum zonatum 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: with arm-like projections (Illustrations of The Japanese Fresh-water Algae, 1977)
Species:

Staurastrum polymorphum var. pygmaeum Grönblad ?, cell body 30 μm long, 37 μm wide, L/W= (including spines), isthmus μm wide, x 640, Utsubo-numa (a pond), Zao mountain, Zao onsen, Yamagata city, Yamagata Pref., Japan, July 13, 2008 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Staurastrum Staurastrum Staurastrum Staurastrum Staurastrum
Cell body 30 μm long, 37 μm wide, L/W= (including spines), isthmus μm wide, x 640, Utsubo-numa (a pond), Zao mountain, Zao onsen, Yamagata city, Yamagata Pref., Japan, July 13, 2008 by Y. Tsukii
Staurastrum Staurastrum Staurastrum Staurastrum

Images of collecting locality: Utsubo-numa (a pond), Zao mountain, Zao onsen, Yamagata city, Yamagata Pref., Japan, July 13, 2008 by Y. Tsukii

Please click on images for viewing enlarged
Copyright Protist Information Server