Species: Cell body quickly attenuated toward both ends (cf. C. ralfsii),
each extended part shorter than spindle-shaped part at middle (cf. C. setaceum),
both termini slighlty curved, rounded, 270-690 μm long, 14-27 μm wide ( L/W= 18-20);
cell wall transparent or brownish with thin lines (8-10 lines/10 μm wide);
chloroplasts composed of 5 lamellae; 4-6 pyrenoids in each half-cell
(Illustrations of The Japanese Fresh-water Algae, 1977). 270-512 μm long, 13-22 μm wide ( L/W= 18-30); 8-11 lines/10 μm wide (Photomicrographs of the Fresh-water Algae, vol. 4, 1985). |
31 μm
63 μm
94 μm; x 640
Closterium kuetzingii Brébisson,
cell body about 490 μm long, 23 μm wide, L/W=21.3,
cell wall striate ( striae/10 μm),
x 200, x 400, x 640, Onnenai, Kushiro marsh, Kushiro city, Hokkaido, Japan, October 16, 2005 by Y. Tsukii
Cell body 536 μm long, 23 μm wide, L/W=23.3,
cell wall striated ( striae/10 μm), x 200, x 400, x 640
x 640
