Gamophyceae:
Zygnematales: Desmidiaceae or Closteriaceae
Closterium aciculare
T. West
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:
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).
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Closterium aciculare T. West,
cell body 520 μm long, 7 μm wide, L/W=74,
x 100, x 200, x 400, x 640, Akigase Park, Saitama city, Saitama Pref., Japan, March 2002 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Closterium aciculare,
cell body 400 μm long, 6.2 μm wide, L/W=65,
x 200, x 400, x 640, Akigase Park, Saitama city, Saitama Pref., Japan, March 2002 by Y. Tsukii
Closterium aciculare,
cell body 375 μm long, 6.2 μm wide, L/W=61,
x 200, x 400, x 640, Akigase Park, Saitama city, Saitama Pref., Japan, March 2002 by Y. Tsukii
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