Nostoc linckia Bornet ex Bornet & Flahault (1886: 193)

Mcgregor, Glenn B., 2018, Freshwater Cyanobacteria of North-Eastern Australia: 3. Nostocales, Phytotaxa 359 (1), pp. 448-450 : 448-450

publication ID

https://doi.org/ 10.11646/phytotaxa.359.1.1

DOI

https://doi.org/10.5281/zenodo.13704316

persistent identifier

https://treatment.plazi.org/id/6B6487B2-183E-2623-EB9A-534CD2C5ADA2

treatment provided by

Felipe

scientific name

Nostoc linckia Bornet ex Bornet & Flahault (1886: 193)
status

 

Nostoc linckia Bornet ex Bornet & Flahault (1886: 193) Fig. 49 A–D.

Thallus macroscopic, fine, thin, mucilaginous, blue-green to blackish-green in colour, initially attached to the substrate, later free floating as irregularly clusters. Filaments flexuous, densely entangled, constricted at the cross walls. Vegetative cells sub-globose to barrel-shaped, 3.0–5.8 μm in diameter. Heterocytes sub-spherical, 4.5–6.5 μm in diameter. Akinetes globose, 6–9 μm long × 4.5–7.0 μm broad, with smooth, colourless to brownish outer cell wall.

Specimens examined:—Fitzroy R., Endeavour R. at Jensen’s Crossing, Einasleigh R. at Talaroo.

Other records:— Queensland: Reynolds Ck, A.B. Cribb, 1949 (BRI 0701421), Burnett Ck, Mt Barlow, A.B. Cribb, 1973 (BRI 0701422), Bailey (1895), Bailey (1913), SE Queensland, McLeod (1975); New South Wales: Barwon Valley Park, Belmont, Geelong, S. Skinner, 2003 (NSW 627347), Victoria: Entwisle (1994), Hardy (1906).

Observations:—Growing in shallow littoral areas and backwaters of streams and rivers. Often detaches from the substrate and becomes free floating in the water column. Australian strains have been associated with the production of the cyanotoxin microcystin ( Gaget et al. 2017).

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