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Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

Closterium aciculare
T. West

Closterium aciculare 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).
pecies: 390-(430-580)-800 μm long, 4-(5-7)-8 μm wide, L/W = 73-135; cell body very long, slightly curved, tapered at both termini; cell wall transparent, lack bands (Illustrations of The Japanese Fresh-water Algae, 1977).


Closterium aciculare, cell body 213 μm long, 3.5 μm wide, L/W=61, x 400, x 640, Kayoicho-ike (pond), Kasuya town, Fukuoka Pref., Japan, October 2001 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Closterium Closterium Closterium


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