image_list image_listE

Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

 Closterium dianae
var. pseudodianae (Roy) Krieger

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).

Closterium dianae var. pseudodianae (Roy) Krieger (or var. dianae ?), cell body 140 μm long, 11.5 μm wide, L/W=12.2, x 640, Iroha-numa (marsh/bog), Zao mountain, Yamagata city, Yamagata Pref., Japan, August 2, 2006 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
Cell body 155 μm long, 11.5 μm wide, L/W=13.5, x 640
Closterium

Images of collecting locality: No. 1, Iroha-numa (marsh/bog), Zao mountain, Yamagata city, Yamagata Pref., Japan, August 2, 2006 by Y. Tsukii

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