Gamophyceae:
Zygnematales: Desmidiaceae
Euastrum cuneatum
Jenner
Subgenus: Entomum (Apical area deeply indented or notched)
Section: Incisa (Cell surface smooth; apical area without spiny projections)
Species: Cell body medium in size, 90-101 μm long, 48-50 μm wide,
L/W=2, isthmus 14-17 μm wide; semicells pyramid-shaped with narrowly flattened apex;
lateral margins nearly straight or somewhat wavy; cell wall dotted or with many small pores, bulging inconspicuous
(Illustrations of The Japanese Fresh-water Algae, 1977).
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Euastrum cuneatum Jenner,
cell body 92 μm long, 54 μm wide, L/W=1.7, isthmus 14 μm wide,
x 640, No. 5-2, Mida-ga-hara (bog/marsh), Gassan (mountain), Tsuruoka city (formerly Haguro town) & Shonai town (formerly Tachikawa town), Yamagata Pref., Japan, August 3, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Euastrum cuneatum Jenner ?,
cell body 96 μm long, 50 μm wide, L/W=1.9, isthmus 14 μm wide,
x 640, No. 5-1, Mida-ga-hara (bog/marsh), Gassan (mountain), Tsuruoka city (formerly Haguro town) & Shonai town (formerly Tachikawa town), Yamagata Pref., Japan, August 3, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
Mida-ga-hara (bog/marsh), Gassan (mountain), Tsuruoka city (formerly Haguro town) & Shonai town (formerly Tachikawa town), Yamagata Pref., Japan, August 3, 2006 by Y. Tsukii
Please click on images for viewing enlarged.
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