image_list image_listE

Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

 Closterium turgidum
Ehrenberg ex Ralfs var. borgei (Borge) Deflandre

Closterium turgidum Genus: Cell body crescent in shape (long, curved, tapered at both ends); cross section rounded; cell wall smooth or with longitudinal lines, bands on the cell wall in some species; chloroplast laminae ridged and radially arranged, which makes cross section star-shaped; pyrenoids aligned or scattered (Illustrations of The Japanese Fresh-water Algae, 1977).
Species:

Closterium turgidum Ehrenberg var. borgei (Borge) Deflandre, cell body 775 μm long, 46 μm wide, L/W =16.8, x 100, x 200, x 400, x 640, Japan, 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 Closterium Closterium Closterium Closterium Closterium Closterium Closterium Closterium

Closterium, x 200, x 400, x 640, December 1998 by Y. Tsukii
Closterium Closterium Closterium Closterium Closterium

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