 
 
Gamophyceae: 
Zygnematales: Desmidiaceae
Cosmarium cucurbitinum
(Bisset) Lütkemüller var. cucurbitinum
|  Species [ var. cucurbitinum ]: Cell body medium in size, (56.5-73)-83 μm long, 
26-(28-30)-33 μm wide, L/W=2.5, slightly constricted at the center; 
semicells semi-spindle shaped, gradually attenuated toward apex, lateral margins convex, apex broad circular; 
cell wall dotted. [ f. minor ]: Smaller than var. cucurbitinum, 50-(56-60) μm long, 
22.5-25-(26.5-28) μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).
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Similar species -->>
	C. cucurbita;
Cosmarium cucurbitinum (Bisset) Lütkemüllerv. cucurbitinum, 
cell body 69 μm long, 29 μm wide, L/W=2.4, isthmus 27 μm wide, 
x 640, Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, May 25, 2006 by Y. Tsukii
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
Cell body 69 μm long, 29 μm wide, L/W=2.4, isthmus 28 μm wide, x 640
 
 
Cosmarium cucurbitinum (Bisset) Lütkemüllerv. cucurbitinum, 
cell body 66 μm long, 27 μm wide, L/W=2.4, isthmus 26 μm wide, 
x 640, Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, May 25, 2006 by Y. Tsukii
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
Images of collecting locality: 
No.5/6, Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, May 25, 2006 by Y. Tsukii
 
 
 
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