image_list image_listE

Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

Closterium dianae
Ehrenberg var. dianae

Closterium dianae Species [ var. dianae ]: Cell body slightly curved, tapered toward both ends, truncated with slanted edges, small pores present at outside of both termini, inner side at center slightly convex, 150-380 μm long, 15-40 μm wide, L/W = 10-12; cell wall smooth; chloroplasts with 5-8 pyrenoids in each chloroplast (Illustrations of The Japanese Fresh-water Algae, 1977).
Cell body 160-323 μm long, 20-28 μm wide, L/W=8.3-12; chloroplasts with about 6 laminae; semicells with 4-8 pyrenoids (Photomicrographs of the Freshwater Algae, vol. 6, 1987).
[var. minus]: Cell body 140-150 μm long, 15 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).

Closterium dianae var. dianae ??, cell body 190 μm long, 18 μm wide, L/W=10.6, bands present (?), pores present at both termini, x 400, x 640, Koigakubo marsh, Tessei-cho, Okayama Pref., Japan, November 22, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Closterium dianae Closterium dianae Closterium dianae

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