living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Embryobionta Cronquist, Takht. & W.Zimm.
         Division Bryophyta A.Braun (1864) - mosses and liverworts see Phylum Bryophyta A.Braun (1864)
           Class Bryopsida McClatchie (1897) - mosses
             Subclass Bryidae Engl. (1892) - mosses
               Superorder Diplolepideae see Class Bryopsida McClatchie (1897)
                 Order Isobryales see Order Hypnales W.R. Buck & Vitt
                   Family Hedwigiaceae Schimp.
                     1 Genus Hedwigia P.Beauv. (1804), nom. cons.
                     2 Genus Hedwigidium Bruch & Schimp.
                     3 Genus Pseudobraunia (Lesq. & James) Broth. (1905)
                     4 Genus Braunia Bruch & Schimp. (1846)
                     5 ?Genus Bryowijkia Nog. (1973)
                     6 ?Genus Rhacocarpus Lindb. (1863)