Gamophyceae:
Zygnematales: Desmidiaceae or Closteriaceae
Closterium nematodes
Joshua var. proboscideum Turner
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:
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Closterium nematodes Joshua var. proboscideum Turner ?,
cell body 340 μm long, 30 μm wide,
x 200, x 400, x 640, Komado marsh (or bog), Showa village and Tajima town, Fukushima Pref., Japan, August 22, 2004, by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Closterium nematodes Joshua var. proboscideum Turner ?,
cell body 320 μm long, 29 μm wide, L/W=11.0,
x 400, x 640, Komado marsh (or bog), Showa village and Tajima town, Fukushima Pref., Japan, August 22, 2004, by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
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