Species: Cell body medium in size, slightly curved, central region spindle-shaped, both side convex, both termini slightly swelled, with slanted edges (cf. C. ralfsii), 190-(320-400)-530 μm long, 18-(29-33) μm wide, L/W=11-16; cell wall striated (10 lines within 10 μm), brownish in color; chloroplasts with 3 laminae, 3-5 pyrenoids in each semicell (Illustrations of The Japanese Fresh-water Algae, 1977). |
Closterium striolatum Ehrenberg var. striolatum,
cell body 245 μm long, 26 μm wide, L/W=9.4,
x 400, x 640, Nagori-ga-hara (bog), Sukawa highland, Kurikoma mountain, Ichinoseki city, Iwate Pref., Japan, July 24, 2005 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640