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 "Hexandria" L. (1735), nom. inval.] see Class Hexandria L. (1753), nom. inval.
                     [Order "Hexandria Tetragynia" L. (1748), nom. inval.] see Order Hexandria Tetragynia L. (1753), nom. inval.
                       1 [Genus "Petiveria" nom. inval.] see Genus Petiveria L. (1753)