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 "Dioecia" L. (1735), nom. inval.] see Class Dioecia L. (1753), nom. inval. [Order "Dioecia Decandria" L. (1735), nom. inval.] see Order Dioecia Decandria L. (1753), nom. inval. [Genus "Sassafras" L. (1735), nom. inval.]