image_list image_listE

Gamophyceae: Desmidales: Desmidaceae or Peniaceae
(Charophyceae: Zygnematales: Desmidaceae)

Penium margaritaceum
(Ehrenberg) Brébisson in Ralfs 1848

Penium cylindrus 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).

Penium margaritaceum (Ehrenberg) Brébisson, cell body 194 μm long, 27 μm wide, L/W=7.2, x 640, Hotaru-no-sato, Naka-gawa Kahan koen (riverside park at Naka river), Kuroiso city, Tochigi Pref., Japan, January 3, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Penium margaritaceum Penium margaritaceum Penium margaritaceum

Please click on images for viewing enlarged.
Copyright Protist Information Server