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 Hydropogonaceae W.H. Welch see Family Sematophyllaceae Broth. (1905), nom. cons.
                     Genus Hydropogonella Cardot (1895)
                       Hydropogonella gymnostoma (Bruch & Schimp.) Cardot (1895)