Gamophyceae:
Zygnematales: Desmidiaceae or Closteriaceae
Closterium rostratum
Ehrenberg ex Ralfs 1848
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).
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Similar species -- >>
C. striolatum (ends broadly truncated, inner side not swelled);
C. nematodes;
Closterium rostratum Ehrenberg,
cell body μm long, μm wide, L/W=,
x 640, No.3a, a marsh pond at Mitsuishi marsh, Hachimantai city, Iwate Pref., Japan, August 13, 2008 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.3, a marsh pond at Mitsuishi marsh, Hachimantai city, Iwate Pref., Japan, August 13, 2008 by Y. Tsukii
Closterium rostratum Ehrenberg ?,
cell body μm long, μm wide, L/W=,
x 640, No.2b, a marsh pond at Mitsuishi marsh, Hachimantai city, Iwate Pref., Japan, August 13, 2008 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.2, a marsh pond at Mitsuishi marsh, Hachimantai city, Iwate Pref., Japan, August 13, 2008 by Y. Tsukii
Please click on images for viewing enlarged.
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