image_list image_listE

Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

 Closterium toxon
W. West

Closterium toxon Species: Cell body medium in size, slightly curved, centrally straight, gradually tapered toward ends, both ends truncated with rounded corners, 163-(190-350) μm long, 8-(8.4-13)-20 μm wide, L/W = 25-32; cell wall smooth, bands absent; chloroplasts with 5-7 pyrenoids (Illustrations of The Japanese Fresh-water Algae, 1977).
QuickTime
Movies
http://protist.i.hosei.ac.jp/

Closterium toxon W. West, cell body 225 μm long, 12 μm wide, L/W = 19, both termini truncated, semicells with 10-11 pyrenoids arranging in a single line, x 200, x 400, x 640, Hiroshima Pref., Japan, September, 1998 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Closterium Closterium Closterium Closterium

C. toxon W. West: Cell body slightly curved, 163-(190-350) μm long, 8-(8.4-13)-20 μm wide, L/W = 25-33; both termini broadly rounded (nearly truncated); cell wall transparent, smooth; 5-7 pyrenoids arranged in a single line (Illustrations of The Japanese Fresh-water Algae, 1977).

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