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 rostratum Ehrenberg ??,
cell body 322 μm long, 26 μm wide, L/W=12.4,
x 200, x 400, x 640, Iroha-numa (marsh/bog), Zao mountain, Yamagata city, Yamagata Pref., Japan, August 2, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No. 1, Iroha-numa (marsh/bog), Zao mountain, Yamagata city, Yamagata Pref., Japan, August 2, 2006 by Y. Tsukii