Protist Images: Micrasterias thomasiana

Gamophyceae: Desmidales: Desmidiaceae
(Charophyceae: Zygnematales: Desmidiaceae)

Micrasterias thomasiana
var. pulcherrima W. et G.S. West

Genus: Cell body flat, large, variable in shape, longer than wide; strong constriction at center; each semicell with several notches; cell wall with many short spines (Illustrations of The Japanese Fresh-water Algae, 1977).
Species:

Micrasterias thomasiana Archer var. pulcherrima W. et G.S. West, cell body about 220 μm long, 185 μm wide, L/W=1.2, x 200, x 400, x 640, Kakuman-buchi at Akagi mountain, Fujimi village, Gunma Pref., Japan, April 30, 2005 by Y. Tsukii