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Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

Closterium subulatum
(Kützing) Brébisson
C. subulatum (Photomicrographs of the Freshwater Algae, vol.3, 1985)
C. subulatus (Illustrations of The Japanese Fresh-water Algae, 1977)

Species [ var. sublatum ]:
[ var. maius Krieger]: Cell body slightly curved, spindle-shaped, both ends elongate, 304-323 μm long, 15 μm wide; cell wall smooth, colourless (Illustrations of The Japanese Fresh-water Algae, 1977).
170-323 μm long, 15-18 μm wide, L/W=10-20; 4-5 pyrenoids in each chloroplast (Photomicrographs of the Freshwater Algae, vol.3, 1985).
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Closterium subulatum
C. subulatum
235 x 13 μm
L/W=18.1
Komado marsh
Showa and Tajima
Fukushima, 2004
Closterium
C. subulatum
235-270 μm
L/W=11.3
Kabuto-yama
Nishi-no-miya
Hyogo, 2004
Closterium subulatum
C. subulatum
μm
L/W=
Ochiai-numa 2
Noshiro
Akita, 2007
Similar species -->> C. ralfsii (cell wall lined);

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Closterium subulatum
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