Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
   Subkingdom Bryobiotina Campb. (1890)
     Division Bryophyta A.Braun (1864) - mosses and liverworts see Phylum Bryophyta A.Braun (1864)
       Subdivision Bryophytina Engl. (1892) see Subphylum Bryophytina Engl. (1892)
         Class Bryopsida McClatchie (1897) - mosses
           Subclass Bryidae Engl. (1892) - mosses
             Superorder Bryanae Goffinet & W.R. Buck
               Order Orthotrichales Dixon [monotypic]
                 Family Orthotrichaceae Arn.
                   01 Genus Cardotiella Vitt
                   02 Genus Ceuthotheca Lewinsky
                   03 Genus Codonoblepharon Schwägr.
                   04 Genus Desmotheca Lindb. (1873)
                   05 Genus Florschuetziella Vitt (1979)
                   06 Genus Groutiella Steere (1950)
                   07 Genus Leiomitrium Mitt. (1879)
                   08 Genus Leratia Broth. & Paris (1909)
                   09 Genus Macrocoma (Hornsch. ex Müll.Hal.) Grout (1944)
                   10 Genus Macromitrium Brid. (1819)
                   11 Genus Matteria Goffinet
                   12 Genus Orthotrichum Hedw. (1801)
                   13 Genus Pentastichella Müll.Hal. (1897)
                   14 Genus Pleurorthotrichum Broth. (1905)
                   15 Genus Schlotheimia Brid. (1812)
                   16 Genus Sehnemobryum Lewinsky-Haapasaari & Hedenäs
                   17 Genus Stoneobryum D.H. Norris & H.Rob. (1981)
                   18 Genus Ulota D.Mohr (1806)
                   19 Genus Zygodon Hook. & Taylor (1818)