Chlorophyceae: Zygnematales: Mesotaeniaceae or Gonatozygaceae
(Gamophyceae: Zygnematales: Desmidiaceae)
Gonatozygon pilosum
Wolle var. pilosum
Genus: Two chloroplasts plate-like or slightly spiralled;
a nucleus centrally located between the chloroplasts; mostly unicells, filaments rare
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species [ var. pilosum ]: Cell body cylindrical 177-(180)-300 μm long,
10.5-15-(15.5) μm wide, L/W = 12-20, cell wall with fine hairy projections,
both ends not swelled.
[ var. echinatum ]: Cell body narrower than v. pilosum, 96-140 μm long,
5-(5.5-7.5) μm wide, L/W = 15-20,
(Illustrations of The Japanese Fresh-water Algae, 1977).
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Gonatozygon pilosum var. pilosum,
cell body 143 μm long, 10 μm wide,
x 400, x 640, Kurihashi town, Saitama Pref., Japan, July 2001 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Gonatozygon sp.,
cell body μm long, μm wide,
x 100, x 200, x 400, x 640, Kurihashi, Saitama Pref., Japan, July 2001 by Y. Tsukii
x 400, x 640
x 640
x 400
* Gonatozygon pilosum var. echinatum Krieger:
cell body cylindrical 96-140 μm long,
5-(5.5-7.5) μm wide,
L/W = 15-20, cell wall covered with many fine hairs, both ends slightly swelled
(Illustrations of The Japanese Fresh-water Algae, 1977).
Gonatozygon pilosum Wolle var. pilosum:
cell body cylindrical 177-(180)-300 μm long,
10.5-15-(15.5) μm wide,
L/W = 12-20, cell wall covered with many hairly spines, both ends slightly swelled
(Illustrations of The Japanese Fresh-water Algae, 1977).
Gonatozygon monotaenium de Bary:
cell body cylindrical (74-145)-284 μm long,
7.5-(9)-11.5 μm wide,
L/W = 10-25, cell wall with many granules, both ends slightly swelled
(Illustrations of The Japanese Fresh-water Algae, 1977).
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