Oscillatoria tenuis C.Agardh ex Gomont

Gupta, Pratibha, 2021, First report of diversity of Cyanobacteria of Broknes Peninsula of Larsemann Hills, East Antarctica, Cryptogamie, Algologie 20 (15), pp. 241-251 : 246-247

Oscillatoria tenuis C.Agardh ex Gomont

Annales des Sciences Naturelles, Botanique, Série 7 (16): 220 (1892). Desikachary, Cyanophyta 222, t. 42, f. 15 ( Desikachary 1959). Komárek & Anagn., Cyanoprokaryota Part 2: Oscillatoriales 19 (2): 587, 878 ( Komárek & Anagnostidis 2005).

DESCRIPTION. — Trichome more or less straight or very slightly curved, very slightly constricted or not constricted at the crosswalls; not attenuated at the apices but very slightly rarely curved at the end, not capitate; septa mostly granulated; apical cell more or less hemispherical or rounded; outer membrane sometimes slightly thickened ( Fig. 8M ).

DIMENSION. — Trichome 5.8-11.5 µm broad and cells 2.13-3.5 µm long.

ENVIRONMENT & HABITAT. — Freshwater species; free-floating, wet rocks & moist stones; temperature 2°C.

Figures

FIG. 8. — Cyanoprokaryotes of Broknes Peninsula. A, Chroococcus minutus (Kütz.) Nägeli; B, Gloeocapsa biformis Ercegovic; C, Cyanosarcina burmensis Skuja, D, Oscillatoria anguina (Bory) Gomont; E, Oscillatoria curviceps C.Agardh ex Gomont; F, Oscillatoria limosa C.Agardh ex Gomont; G, Planktothrix rubescens (DC. ex Gomont) Anagn. & Komárek; H, Lyngbya confervoides C.Agardh ex Gomont; I, Phormidium ambiguum Gomont; J, Phormidium bekesiense (I.Kiss) K.Kiss,; K, Oscillatoria jenensis G.Schmid; L, Phormidium subfuscum Kütz. ex Gomont; M, Oscillatoria tenuis C.Agardh ex Gomont; N, Aulosira fritschii Bharadwaja; O, Coleospermum goeppertianum (goppertianum) Kirch. ex Frank; P, Stigonema mesentericum Geitler. Scale bars: A, N, O, 30 µm; B, C, F, I, L, 10 µm; D, E, G, H, J, K, M, P, 20 µm.