Gamophyceae:
Zygnematales: Desmidiaceae or Closteriaceae
Closterium gracile
Brébisson ex Ralfs 1848
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: Cell body 90-(155-272)-275 μm long,
(4-7)-8 μm wide, L/W = 25-40;
slightly curved but straight at the center, tapered at both ends;
cell wall smooth without bands (Illustrations of the Japanese Fresh-Water Algae, 1977).
|
Closterium gracile Brébisson,
cell body 243 μm long, 6.5 μm wide, L/W=,
x 400, x 640, No.5, Oh-Yachi, Komado marsh (No.5), Showa village and Tajima town, Fukushima Pref., Japan, May 21, 2007, by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Closterium gracile,
cell body 214 μm long, 6.5 μm wide, L/W=32.9,
x 400, x 640, No.5, Oh-Yachi, Komado marsh (No.5), Showa village and Tajima town, Fukushima Pref., Japan, May 21, 2007, by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.5, Oh-Yachi, Komado marsh (No.5), Showa village and Tajima town, Fukushima Pref., Japan, May 21, 2007, by Y. Tsukii
Please click on images for viewing enlarged.
Copyright
Protist Information Server