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Species [var. libellula]:
Similar to C. navucula (not curved, spindle or boat in shape) but large;
170-(216-224)-450 μm long,
30-(42-48)-52 μm wide;
L/W = 5-8; chloroplast with 8-12 ridges;
3-5 pyrenoids in each semicell.
[ var. intermedium ]: Smaller than var. libellula; 75-(123-174) μm long, 15-(20-32)-36 μm wide; 3-4 pyrenoids in each semicell. [var. interruptum]: Smaller than var. libellula, 90-(150-271)-400 μm long, 16-(25-31)-55 μm wide; chloroplast in each semicell separated into two pieces (Illustrations of The Japanese Fresh-water Algae, 1977). |
31 μm
63 μm
94 μm; x 640
Closterium libellula,
cell body μm long, μm wide, L/W=,
x 640, No.5, Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, April 15, 2007 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.6, Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, April 15, 2007 by Y. Tsukii
