Natura - nature Universum - universe see [unranked] Mundus Plinius 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 Algae L. (1735), nom. inval. see Order Algae L. (1753) Genus Lemna nom. inval.