Gamophyceae: Desmidales: Desmidaceae or Peniaceae
(Charophyceae: Zygnematales: Desmidaceae)
Penium margaritaceum
(Ehrenberg) Brébisson in Ralfs 1848
Species: Cell body cylindrical, slightly depressed at center,
68-185 μm long,
14-22 μm wide;
chloroplasts with longitudinal ridges; cell wall with small granules arranged longidudinally or sometimes
irregularly; zygospores spherical or slightly elongated
(Photomicrographs of the Fresh-water Algae, 1985).
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Penium margaritaceum (Ehrenberg) Brébisson,
cell body about 153 μm long, 21 μm wide, L/W=7.3,
x 640, Maimeno-ike (pond), Norikura highland, Azumi, Matsumoto city (formerly Azumi village), Nagano Pref., Japan, June 8, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Cell body 193 μm long, 22 μm wide, L/W=8.8, x 640
Images of collecting locality:
Maimeno-ike (pond), Norikura highland, Azumi, Matsumoto city (formerly Azumi village), Nagano Pref., Japan, June 8, 2006 by Y. Tsukii
Please click on images for viewing enlarged.
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