Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["Regnum Vegetabile" L. (1753), nom. inval. - plant kingdom] see Kingdom Plantae Haeckel (1866)
           [Class Cryptogamia L. (1753)]
             [Order "Musci" L. (1753), nom. inval.] see Order Musci
               [Genus "Bryum" J.J. Dillenius, nom. inval.]