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Gamophyceae: Zygnematales: Desmidiaceae

Euastrum substellatum
Nordstedt

Euastrum 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:
Similar species -- >> ; ;


Euastrum substellatum Nordstedt, cell body μm long, μm wide, L/W=, isthmus μm wide, x 640, Water field near Bungo-Mori railway station, Kusu town, Oita Pref., Japan, September 8, 2008 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Euastrum substellatum Euastrum substellatum Euastrum substellatum Euastrum substellatum Euastrum substellatum

Images of collecting locality: Water field near Bungo-Mori railway station, Kusu town, Oita Pref., Japan, September 8, 2008 by Y. Tsukii


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