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 "Heptandria" L. (1735), nom. inval.] see Class Heptandria L. (1753), nom. inval. [Order "Heptandria Monogynia" L. (1735), nom. inval.] see Order Heptandria Monogynia L. (1753), nom. inval. [Genus "Esculus" nom. inval.] see Genus Aesculus L. (1753) 1 Subgenus "Esculus subg. Pavia" H. Boerhaave, nom. inval.