Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["Vegetabile Regnum" nom. inval. - plant kingdom] see Kingdom Plantae Haeckel (1866)
           ["Publicae"]
             ["Monoclinia"]
               ["Diffinitas"]
                 ["Indifferentismus"]
                   [Class "Triandria" L. (1735), nom. inval.] see Class Triandria L. (1753), nom. inval.
                     [Order "Triandria Digynia" L. (1735), nom. inval.] see Order Triandria Digynia L. (1753), nom. inval.
                       ["Calyx multiflorus"]
                         [Genus "Bromus" L. (1735), nom. inval.] see Genus Bromus L. (1753)