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
Species: Cell body elongated spindle-shaped, μm long, μm wide, L/W=; cell wall transparent, smooth; chloroplasts with 3-6 pyrenoids |
31 μm
63 μm
94 μm; x 640
Closterium pronum or C. acutum ?,
cell body 320 μm long, 7 μm wide, L/W=45.7,
x 200, x 400, x 640, No.11, a marsh pond at Sensho-ga-hara, near Akita-komagadake (mountain), Shizukuishi town, Iwate Pref., Japan, August 6, 2007 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.11, a marsh pond at Sensho-ga-hara, near Akita-komagadake (mountain), Shizukuishi town, Iwate Pref., Japan, August 6, 2007 by Y. Tsukii
