image_list image_listE

Gamophyceae: Zygnematales: Desmidiaceae

Cosmarium ornatum
Ralfs

Cosmarium ornatum Species: Cell body deeply constricted, 32-40 μm long, 35-41 μm wide, constriction (isthmus) 11-13 μm wide, semicells reniform, apex slightly elevated and truncate, lateral margins convex and convergent upward, apex, lateral margins and the center of the semicells furnished with granules, other parts of cell walls smooth (Photomicrographs of the Freshwater Algae, vol. 3, 1985).


Cosmarium ornatum Ralfs, cell body 36 μm long, 37 μm wide, L/W=1.0, isthmus 12 μm wide, x 640, Kannon-numa Forest Park (pond), Shimogo town, Fukushima Pref., Japan, June 25, 2006, collected by Eizaburo Tsukii, photo by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Cosmarium Cosmarium


Please click on images for viewing enlarged.
Copyright 1999 Yuuji Tsukii