image_list image_listE

Gamophyceae: Zygnematales: Desmidiaceae

Cosmarium decoratum
W. et G.S. West var. decoratum

Cosmarium decoratum Species: Cell body medium in size or larger, 65-86 μm long, 51-63 μm wide, L/W=1.25, isthmus 19-32.5 μm wide; semicells pyramidal or trapezoid in shape with flattened apex; cellwall covered with large granules (including apex, c.f. C. pseudomagnificum); many triangular pores present at the center of the semicells (Illustrations of The Japanese Fresh-water Algae, 1977).


Cosmarium decoratum W. et G.S. West, cell body 84 μm long, 60 μm wide, L/W=1.4, isthmus 30 μm wide, x 640, No.6, Kashibaru marsh, Karatsu city, Saga Pref., Japan, November 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Cosmarium decoratum Cosmarium decoratum Cosmarium decoratum Cosmarium decoratum

Images of collecting locality: No.6, Kashibaru marsh, Karatsu city, Saga Pref., Japan, November 22, 2006 by Y. Tsukii


Please click on images for viewing enlarged.
Copyright Protist Information Server