Subclass [Bryidae] Engl. (1892) - mosses Superorder Ptychomnianae W.R.Buck et al. (2004) see Superorder Hypnanae W.R.Buck & Goffinet ex W.R. Buck, C.J. Cox, A.J. Shaw & Goffinet (2005) Order Ptychomniales W.R. Buck, C.J. Cox, A.J. Shaw & Goffinet (2005) Family Ptychomniaceae M. Fleisch. (1908) Genus Ptychomnion (Hook.f. & Wilson) Mitt. (1869) Section Ptychomnion sect. Ptychomniella Broth. (1909) see Genus Ptychomniella (Broth.) W.R. Buck, C.J. Cox, A.J. Shaw & Goffinet (2005)