Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["Vegetabile Regnum" nom. inval. - plant kingdom] see Kingdom Plantae Haeckel (1866)
           ["Publicae"]
             ["Diclinia"]
               [Class "Polygamia" L. (1735), nom. inval.] see Class Polygamia L. (1753), nom. inval.
                 [Order "Polygamia Dioecia" L. (1735), nom. inval.] see Order Polygamia Dioecia L. (1753), nom. inval.
                   [Genus "Ornus" G. Pontedera, nom. inval.] see Genus Fraxinus Tourn., nom. inval.