Gamophyceae:
Zygnematales: Desmidiaceae
Euastrum insulare
(Wittrock) Roy var. silesiacum Grünblad,
Genus:
Variable in shape and in size; mostly longer than wide; strong constriction at center;
semicell pyramid-shaped, apically flattened with indentation (or notch, some species
lack this notch); laterally straight or wavy or indented; one chloroplast in each semicell;
one pyrenoid for each chloroplast
(Illustrations of The Japanese Fresh-water Algae, 1977).
Subgenus: Atomum (Apical area slightly depressed)
Section: Retusa (Cell body large; granulated dome(s) at the center of each semicell)
Species:
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Similar species -- >>
E. platycerum;
E. egregium;
Euastrum insulare (Wittrock) Roy var. silesiacum Grünblad,
cell body μm long, μm wide, L/W=, isthmus μm wide,
x 640, No.2, Hachiman-numa marsh, Hachimantai, Hachimantai city, Iwate Pref., Japan, August 23, 2007 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.2, Hachiman-numa marsh, Hachimantai, Hachimantai city, Iwate Pref., Japan, August 23, 2007 by Y. Tsukii
Please click on images for viewing enlarged.
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