Oscillatoria anguina Bory 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 : 245-246

Oscillatoria anguina Bory ex Gomont

Annales des Sciences Naturelles, Botanique, Série 7, 16: 234, t.4, f. 16. ( Gomont 1892). Desikachary, Cyanophyta 210, t. 41, f. 5-6 ( Desikachary 1959). Komárek & Anagn., Cyanoprokaryota Part 2: Oscillatoriales 19 (2): 592, f. 885 ( Komárek & Anagnostidis 2005).

DESCRIPTION. — Trichome almost straight, sometimes slightly bent, tapering at the end, not constricted or very slightly constricted, cross-walls granulated; screw like more or less twisted and gradually attenuated at the end; cells sometimes distinctly granulated,; end-cells capitate to sickle shape or obtusely button like flattened or rounded with slightly thickened outer wall, rarely with calyptra ( Fig. 8D ).

DIMENSION. — Trichome 4.6-6.5 µm broad and cells 1.6-3.4 µm long.

ENVIRONMENT & HABITAT. — Freshwater species; water logged area; temperature 5°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.