Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies ["Vegetabile Regnum" nom. inval. - plant kingdom] see Kingdom Plantae Haeckel (1866) ["Clandestinae"] [Class "Cryptogamia" L. (1735), nom. inval.] see Class Cryptogamia L. (1753) [Order "Musci" L. (1735), nom. inval.] see Order Musci L. (1753), nom. inval. [Genus "Selaginoides" J. Ray, nom. inval.] see Genus Lycopodium Dill. (1741), nom. inval.