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 "Tetrandria" L. (1735), nom. inval.] see Class Tetrandria L. (1753), nom. inval. [Order "Tetrandria Monogynia" L. (1735), nom. inval.] see Order Tetrandria Monogynia L. (1753), nom. inval. ["Aggregatae calyce communi. Semina solitaria, nuda"] [Genus "Protea" nom. inval.] see Genus Protea L. (1753), nom. rej.