Aulosira fritschii Bharadwaja

Gupta, Pratibha, 2021, First report of diversity of Cyanobacteria of Broknes Peninsula of Larsemann Hills, East Antarctica, Cryptogamie, Algologie 20 (15), pp. 241-251 : 249

Aulosira fritschii Bharadwaja

Annals of Botany 47: 123, f. 3-4 ( Bharadwaja 1933). Desikachary, Cyanophyta 432, t. 80, f. 7-12 ( Desikachary 1959).

DESCRIPTION. — Filament long, more or less straight or slightly bent; sheath hyaline, outer portion diffluent; trichome constricted at the cross-walls; cells contents finely granular; heterocysts single and intercalary, cylindrical, rarely elongate cylindrical ( Fig. 8N ).

DIMENSION. — Filament 12.0-21.0 µm broad; trichome 7.0-14.0 µm broad; heterocysts 8.2-14.0 µm broad.

ENVIRONMENT & HABITAT. — Freshwater species; pond & lake; temperature 0.5°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.