Phylum Bryophyta A.Braun (1864) - bryophytes Class Bryopsida McClatchie (1897) - mosses Subclass Dicranidae Doweld (2001) Order Grimmiales M. Fleisch. Family Scouleriaceae S.P. Churchill 1 Genus Scouleria Hook. (1829) 2 Genus Tridontium Hook.f. (1840)