Gamophyceae:
Zygnematales: Desmidiaceae
Staurastrum simonyi
Heimerl var. simonyi
Species [ var. simonyi ]:
Cell body 19-24 μm long, 18-25 μm (excluding spines),
isthmus 6-7.5 μm wide,
6 short spines at each side of trianglur semicell in top view
[ var. sparse-aculeatum (Schmidle) Hirano ]:
Cell body 19.6-23.7 μm long (excluding spines), 19.6-19.8 μm wide
(excluding spines), isthmus 5.6-7.7 μm wide, spines equal in length
(Illustrations of The Japanese Fresh-water Algae, 1977)
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Staurastrum simonyi Heimerl var. simonyi ?,
cell body 20 μm long, 21 μm wide, L/W=1.0, isthmus 7 μm wide,
x 640, water reservoir, Kumakubo, Nasu-shiobara city (formerly Kuroiso city), Tochigi Pref., Japan, August 21, 2005, collected by Eizaburo Tsukii, photo by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Staurastrum simonyi Heimerl var. simonyi ?,
cell body 21 μm long, 21 μm wide, L/W=1.0, isthmus 7 μm wide,
x 640, Kumakubo, Nasu-shiobara city (formerly Kuroiso city), Tochigi Pref., Japan, December, 2005, collected by Eizaburo Tsukii, photo by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Please click on images for viewing enlarged.
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