image_list image_listE

Gamophyceae: Zygnematales: Desmidiaceae

 Cosmarium australe
(Raciborski) Lütkemüller
= Actinotaenium australe (Raciborski) Teiling ?

Cosmarium australe Section [ Actinotaenium ]: Cell body cylindrical, slightly constricted at the center, cell surface smooth or dotted or punctated (Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Cell body medium in size, 65-(67-79) μm long, 38-40-(41-45) μm wide, isthmus 37-(39-41) μm wide, L/W=1.5; semicells semielliptical, with slightly flattened apex, apical view circular; cell wall dotted (Illustrations of The Japanese Fresh-water Algae, 1977).

Cosmarium australe (Raciborski) Lütkemüller, cell body 72 μm long, 50 μm wide, with a slight constriction at center, x 640, History and folk museum of Oku-aizu area, Tajima town, Fukushima Pref., Japan, August 22, 2004, by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Cosmarium Cosmarium
Cell body 69 μm long, 44 μm wide, with a slight constriction at center, x 640
Cosmarium Cosmarium

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