Subclass [Bryidae] Engl. (1892) - mosses
   Superorder Hypnanae W.R.Buck & Goffinet ex W.R. Buck, C.J. Cox, A.J. Shaw & Goffinet (2005)
     Order Hookeriales M. Fleisch.
       Family Leucomiaceae Broth.
         1 Genus Leucomium Mitt. (1868)
         2 Genus Rhynchostegiopsis Müll.Hal. (1897)
         3 Genus Tetrastichium (Mitt.) Cardot (1908)