Polytrichaceae Schwägr.
Atrichum P.Beauv. , nom. cons., scientific
Palisot de Beauvois, A.M.F.J. (1804), Magazin Encyclopedique, ou Journal des Sciences, des Lettres et des Arts 5: 329 [tax. nov.]
  • Type: Atrichum undulatum (Hedw.) P.Beauv.
taxonomic synonym: Catharinea Ehrh. ex F.Weber & D.Mohr nom. rej.
Hyvonen, J. in McCarthy, P.M. (ed.) (2006), Polytrichaceae. Flora of Australia 51: 126 [secondary reference]
  • Comment: from the Greek a- (without) and trichos (a hair), in reference to the calyptra lacking the thick covering of hairs typical of many genera of Polytrichaceae