Lundell, P.M. (1871), De Desmidiaceis, quae in Suecia inventae sunt, observationes criticae. Nova Acta Regiae Societatis Scientiarum Upsaliensis ser. 3, 8(2): 35, pl. II: fig. 23 [tax. nov.]

Playfair, G. (1910), Polymorphism and life-history in the Desmidiaceae. Proceedings of the Linnean Society of New South Wales 35: 481 [basionym]

basionym of: Cosmarium rectangulare var. sexangulare (P.Lundell) Playfair legitimate

Day, S.A., Wickham, R.P., Entwisle, T.J. & Tyler, P.A. (1995), Bibliographic checklist of non-marine algae in Australia: - [secondary reference]

Whitton, B.A., John, D.M., Johnson, L.R., Boulton, P.N.G., Kelly, M.R. & Haworth, E.Y. (1999), A Coded List of Freshwater Algae of the British Isles: - [secondary reference]

Entwisle, T.J. & Nairn, L. (2011), Census of Freshwater Algae in Australia. Edn. Version 1.0: - [secondary reference]

nomenclatural synonym: Cosmarium rectangulare var. sexangulare (P.Lundell) Playfair legitimate

• APC Comment: T.J.Entwisle and L.Nairn (2011) use this taxon concept.
• Distribution: New South Wales, Queensland, Tasmania, South Australia, Northern Territory

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