Dolichospermum perturbatum (Hill) Wacklin, Hoffmann & Komárek (2009)

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

Dolichospermum perturbatum (Hill) Wacklin, Hoffmann & Komárek (2009) Fig. 14 A–C.

Basionym: Anabaena perturbata Hill (1976: 67)

Filaments solitary or clustered into microscopic aggregations, planktonic; trichomes regularly spirally coiled, coils 30–40 μm in diameter, constricted at the cross walls, not attenuated towards the ends; often with a broad, colourless mucilage. Vegetative cells spherical or slightly longer than broad, 7.0–9.0 μm in diameter, blue-green in colour, with aerotopes; apical cells undifferentiated. Heterocytes spherical, 7.0–10.0 μm in diameter. Akinetes intercalary, solitary, cylindrical and reniform, remote from the heterocytes, 13.0–19.0 μm long × 9.5–15.0 μm broad.

Specimens examined:—Atkinson Dam, Moogerah Dam.

Other records:— Baker (1991), Baker & Fabbro (2002).

Observations:—Cosmopolitan species, known from the plankton of reservoirs and weir pools throughout Australia.