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.
                     1 [Order "Hexandria Monogynia" L. (1735), nom. inval.] see Order Hexandria Monogynia L. (1753), nom. inval.
                     2 [Order "Hexandria Digynia" L. (1735), nom. inval.] see Order Hexandria Digynia L. (1753), nom. inval.
                     3 [Order "Hexandria Trigynia" L. (1735), nom. inval.] see Order Hexandria Trigynia L. (1753), nom. inval.
                     4 [Order "Hexandria Tetragynia" L. (1748), nom. inval.] see Order Hexandria Tetragynia L. (1753), nom. inval.
                     5 [Order "Hexandria Hexagynia" L. (1735), nom. inval.]
                     6 [Order "Hexandria Polygynia" L. (1735), nom. inval.] see Order Hexandria Polygynia L. (1753), nom. inval.