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Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

Closterium angustatum
Kützing var. angustatum f. angustatum

Closterium angustatum 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 angustatum Kützing var. angustatum f. angustatum, cell body 380 μm long, 24 μm wide, L/W=15.8, x 200, x 400, x 640, Ko-numa (pond/marsh), Tsukiyono town, Gunma Pref., Japan, September 2003 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 angustatum Closterium angustatum Closterium angustatum
x 640
Closterium angustatum Closterium angustatum Closterium angustatum
Closterium angustatum Closterium angustatum Closterium angustatum
Closterium angustatum Closterium angustatum


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