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Gamophyceae: Zygnematales: Desmidiaceae

Staurastrum aciculiferum
(West) Anderson (Illustrations of The Japanese Fresh-water Algae)
(West) Anderrson (algaeBASE)

Staurastrum aciculiferum Genus: Cell body short, radiate in shape; apical view of the cell, triangular, polygonal, ellipsoidal or spindle-shaped; zygospores formed outside of mother cells (Illustrations of The Japanese Fresh-water Algae, 1977)
Subgenus: lacks arm-like projections (Illustrations of The Japanese Fresh-water Algae, 1977)

Species: Cell body small, (22.4-25)-30 μm long, (28)-34 μm wide, L/W=1, isthmus 5-(7.8-9) μm wide; semicells elliptical or triangular in side view, apex slightly convex, laterally strongly convex; dichotomous projections at each corner; apical view triangular (Illustrations of The Japanese Fresh-water Algae, 1977)


Staurastrum aciculiferum (West) Anderson, cell body 22 μm long, 20 μm wide, L/W=1.1 (excluding spiny projections 6 μm), 27 μm long, 30 μm wide, L/W=0.9 (inculding spiny projections), isthmus 8 μm wide, x 640, marsh pond along climbing route near 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
scale 31 μm scale 63 μm scale 94 μm; x 640
Staurastrum Staurastrum Staurastrum Staurastrum Staurastrum

Images of collecting locality: Marsh pond along climbing route near 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


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