Gamophyceae: Desmidales: Desmidaceae or Peniaceae
(Charophyceae: Zygnematales: Desmidaceae)
Penium polymorphum
Perty
Species: Cell body cylindrical or ellipsoidal, tapered to both ends, 35-79 μm long,
(16-21)-36 μm wide; both ends broadly rounded; cell wall thin, brownish in color,
finely lined (15-18/10 μ)
(Illustrations of The Japanese Fresh-water Algae, 1977).
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Penium polymorphum Perty,
cell body 49 μm long, 22 μm wide, L/W=2.2,
x 640, Watasuge marsh (or bog), Tsugaike highland (Tsugaike Natural Park), Otari village, Nagano Pref., Japan, August 11, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Penium polymorphum Perty,
cell body 50 μm long, 20 μm wide, L/W=2.5, isthmus 17.5 μm wide,
x 640, Watasuge marsh (or bog), Tsugaike highland (Tsugaike Natural Park), Otari village, Nagano Pref., Japan, August 11, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Cell body 62.5 μm long, 21.5 μm wide, L/W=2.9, isthmus 21 μm wide, L/W=, x 640
Images of collecting locality:
Watasuge marsh (or bog), Tsugaike highland (Tsugaike Natural Park), Otari village, Nagano Pref., Japan, August 11, 2006 by Y. Tsukii
Please click on images for viewing enlarged.
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