Cyanophyceae: Nostocales: Rivulariaceae
Calothrix sp.
[C. Agardh 1824] Bornet et Flahault 1886 (John et al. ed. 2002)
Family: Trichome (filamentous structure) tapered from base to tail
Genus: Heterocysts present; one trichome within a sheath; coenobium absent
(Illustrations of The Japanese Fresh-water Algae, 1977).
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Calothrix sp. (or Homoeothrix ?),
trichome up to 9 μm in width,
heterocyst 7.5 μm long, 9 μm wide, L/W=0.8,
x 200, x 400, x 640, Jionji-shinsui-koen (Jion temple water park), Iwatsuki-ku (formerly Iwatsuki city), Saitama city, Saitama Pref., Japan, February 12, 2006 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
Jionji-shinsui-koen (Jion temple water park), Iwatsuki-ku (formerly Iwatsuki city), Saitama city, Saitama Pref., Japan, February 12, 2006 by Y. Tsukii
Please click on images for viewing enlarged.
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