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"]
               ["Affinitas"]
                 [Class "Syngenesia" L. (1735), nom. inval.] see Class Syngenesia L. (1753), nom. inval.
                   [Order "Polygamia aeqvalis" nom. inval.] see Order Polygamia aeqvalis L. (1753), nom. inval.
                     ["Corollulae tubipetalae"]
                       [Genus "Carduus" nom. inval.] see Genus Carduus L. (1753)