image_list image_listE

Gamophyceae: Zygnematales: Zygnemataceae

 Spirogyra daedaleoides
Czurda

Spirogyra Genus: Filament without branching; cell body cylindrical; one or several chloroplasts band-shaped, spirally arranged within the cell, pyrenoids present; septum with or without folded structure (Guide book to the "Photomicrographs of the Freshwater Algae", 1998). About 300 species (Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Vegetative cells 65-240 μm long, 29-36 μm diam.; 1 chloroplast making 2.5-8 turns in each cell; conjugation scalariform; tubes formed from both gametangial cells; female gametangium cylindrical or slightly swelled; zygospores football-shaped (55-85 μm long, 30-36 μm wide) (Illustrations of The Japanese Fresh-water Algae, 1977).

Spirogyra daedaleoides Czurda, cell body 95-115 μm long, 31 μm wide, L/W=3.1-3.7, a single band-form chloroplast making 3.5 turns in each cell, x 400, x 640, Mizube-no-hiroba (Riverside park), Akagi forest park, Fujimi village, Gunma Pref., Japan, April 30, 2005 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Spirogyra Spirogyra Spirogyra
Zygotes 60-66 μm long, 36 μm wide, L/W=1.7-1.8, x 400, x 640
Spirogyra Spirogyra Spirogyra

Please click on images for viewing enlarged.
Copyright Protist Information Server