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 92 μm long, 22 μm wide, L/W= 4.5,
x 400, x 640, Saitama Pref., Japan, May-June 1999 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Penium margaritaceum (Ehrenberg) Brébisson,
cell body 101 μm long, 22 μm wide, L/W= 4.5,
Saitama Pref., Japan, May-June 1999 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Penium margaritaceum,
cell body 130 μm long, 22 μm wide, L/W= 4.5,
Saitama Pref., Japan, May-June 1999 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Please click on images for viewing enlarged.
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