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).
|
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Closterium rostratum Ehrenberg,
cell body 255 μm long, 24 μm wide, L/W=10.6,
x 400, x 640, Shibu-ike (pond), Shiga highland, Yamanouchi town, Nagano Pref., Japan, June 19, 2005 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
