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). |
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
