Gamophyceae:
Zygnematales: Desmidiaceae
Euastrum ansatum
var. javanicum (Gutwinski) Krieger
Subgenus: Entomum (Apical area deeply indented or notched)
Section: Incisa (Cell surface smooth; apical area without spiny projections)
Species [var. ansatum ]: Cell body medium in size, elongate pyramid-shaped, side margins cocaved,
87-95 μm long, 39-42 μm wide, L/W=2, isthmus 11-14 μm wide;
cell wall dotted, with 5 bulges conspicous (2 central, 3 basal)
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species [var. dideltiforme ]: Cell body 81-109 μm long, 42-53 μm wide,
constriction 11-15 μm wide; semicells tapered to terminal lobe,
anterior lateral lobes slightly developed
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Euastrum ansatum var. javanicum (Gutwinski) Krieger,
cell body 81 μm long, 40 μm wide, L/W=2.0, isthmus 12 μm wide,
x 640, No.6, Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, April 15, 2007 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Euastrum ansatum var. javanicum (Gutwinski) Krieger,
cell body 85 μm long, 40 μm wide, L/W=2.1, isthmus 12 μm wide,
x 640, No.6, Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, April 15, 2007 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.6, Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, April 15, 2007 by Y. Tsukii
Please click on images for viewing enlarged.
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