Protist Movie Database

Gamophyceae: Zygnematales: Desmidiaceae
(Charophyceae: Zygnematales: Desmidiaceae)

Closterium libellula
var. interruptum (W. et G.S. West) Donat

Species [var. libellula]: Similar to C. navucula (not curved, spindle or boat in shape) but large; 170-(216-224)-450 μm long, 30-(42-48)-52 μm wide; L/W = 5-8; chloroplast with 8-12 ridges; 3-5 pyrenoids in each semicell.
[ var. intermedium ]: Smaller than var. libellula; 75-(123-174) μm long, 15-(20-32)-36 μm wide; 3-4 pyrenoids in each semicell.
[var. interruptum]: Smaller than var. libellula, 90-(150-271)-400 μm long, 16-(25-31)-55 μm wide; chloroplast in each semicell separated into two pieces (Illustrations of The Japanese Fresh-water Algae, 1977).

Closterium libellula var. interruptum (W. et G.S. West) Donat, tape No. 0123, time code 3827, cell body 108 μm long, 20 μm wide, L/W = 5, cell body not curved, 2 pyrenoids in each half-cell, x 400, x 640, Higashi-hiroshima city, Hiroshima Pref., Japan, September, 1998 by Y. Tsukii

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