Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies ["[Regnum Vegetabile]" L. (1753), nom. inval. - plant kingdom] see Kingdom Plantae Haeckel (1866) [Class "Dioecia" L. (1753), nom. inval. - dioecious plants] [Order "Dioecia Hexandria" L. (1753), nom. inval.]