Polytrichaceae Schwägr.
Atrichum angustatum var. polysetum Wilson , legitimate, scientific
Wilson, W.M. in Hooker, J.D. (1859), Musci. The botany of the Antarctic voyage of H.M. Discovery ships Erebus and Terror. III. Flora Tasmaniae 2(8): 200 [tax. nov.]
Hyvonen, J. in McCarthy, P.M. (ed.) (2006), Polytrichaceae. Flora of Australia 51: 128 [taxonomic synonym]
taxonomic synonym of: Atrichum androgynum (Müll.Hal.) A.Jaeger legitimate