Protist Movies

Gamophyceae: Desmidales: Mesotaeniaceae
(Charophyceae: Zygnematales: Mesotaeniaceae)

Spirotaenia
Brébisson

Family: Cell body cylindrical or spindle-shaped, loosely attached with each other to form a filamentous colony; cell wall smooth, consists of a single partition, one layer; 1-2 chloroplasts plate- or ribbon-like, with pyrenoids; a single nucleus centrally placed.
Genus: Cell body cylindroid or spindle in shape; spiral ribbon-like chloroplasts or laminae of the chloroplast arranged spirally around central rod (Illustrations of The Japanese Fresh-water Algae, 1977).

S. obscura
2 clips
72 x 13 μm
Hiroshima, 1998

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