Müller, J.K.(C.)A.(F.W.) (1898), Symbolae ad bryologiam Australiae II. Hedwigia 37: 157 [comb. nov.]

Paris, J.E.G.N. (1900), Index Bryologicus sive enumeratio muscorum hucusque cognitorum adiunctis synonymia distributioneque geographica locupletissimis. Supplementum primum: 289 [basionym]

basionym of: Ptychomitrium laxifolium (Müll.Hal.) Paris legitimate

Brotherus, V.F. in Engler, H.G.A. & Prantl, K.A.E. (ed.) (1902), Bryales, in part. Die Natürlichen Pflanzenfamilien 1, 3: 442 [basionym]

basionym of: Glyphomitrium laxifolium (Müll.Hal.) Broth. legitimate

Klazenga, N. (2015), AusMoss: Catalogue of Australian mosses, v. 2015-11-16: - [nomenclatural synonym]

nomenclatural synonym of: Ptychomitrium laxifolium (Müll.Hal.) Paris legitimate

Meagher, D.A. (2017), The genus Ptychomitrium Fürnr. (Bryophyta: Ptychomitriaceae) in Australia. Telopea 20: 50 [taxonomic synonym]

taxonomic synonym of: Ptychomitrium acutifolium Hook.f. & Wilson legitimate

Klazenga, N. (2020), Census of Australian bryophytes v. 2020-09-07: 50 [taxonomic synonym]

taxonomic synonym of: Ptychomitrium acutifolium Hook.f. & Wilson legitimate

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