Stigonema eliskae Komárek & Komárková (2017: 24)

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

Stigonema eliskae Komárek & Komárková (2017: 24) Fig. 82 A–F.

Filaments solitary or in loose agglomerations amongst other algae, not forming sessile colonies; isopolar, uni- to 3–4 × multiseriate, 20–35 (–45) μm broad, rarely laterally branched, branches typically short and of the same morphology as the main filaments. Sheath firm, uncoloured, not lamellated. Vegetative cells irregularly spherical, 7.5–15 (–18.5) μm in diameter, olive-green to yellow-brown in colour. Heterocytes lateral, subspherical to hemispherical, 5–15 μm in diameter. Reproduction by fragmentation and the production of hormogonia from the apices of lateral branches.

Specimens examined:—Amity Swamp, Tortoise Lagoon, Naree Budjong Djara Natl Park, North Stradbroke Is., Freshwater L., Great Sandy Natl Park, Cooloola Section.

Observations:—Growing amongst the Hapalosiphon- dominated metaphyton in the littoral zone of wallum lakes and streams. Not known to form sessile mats or attached to the substrate (Komárek & Komárková 2017).