Systema naturæ - nature Universum - universe see [unranked] Mundus Plinius naturalia - natural bodies Regnum Vegetabile L. (1735), nom. inval. - plant kingdom see Kingdom Plantae Haeckel (1866) Clandestinæ Class Cryptogamia L. (1735), nom. inval. see Class Cryptogamia L. (1753) Order Filices L. (1735), nom. inval. see Order Filices L. (1753), nom. inval. Genus Polypodium Tourn., nom. inval. see Genus Polypodium L. (1753)