Natura - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Vegetabile Regnum nom. inval. - plant kingdom see Kingdom Plantae Haeckel (1866)
         Publicae
           Monoclinia
             Diffinitas
               Indifferentismus
                 Class Pentandria L. (1735), nom. inval. see Class Pentandria L. (1753), nom. inval.
                   Order Pentandria Digynia L. (1735), nom. inval. see Order Pentandria Digynia L. (1753), nom. inval.
                     Corollae lobi oblique dextrorsum flexi
                       1 '223' Genus Stapelia nom. inval. see Genus Stapelia L. (1753)
                       2 '224' Genus Asclepias nom. inval. see Genus Asclepias L. (1753)
                       3 '225' Genus Periploca nom. inval. see Genus Periploca L. (1753)
                       4 '226' Genus Cynanchum nom. inval. see Genus Cynanchum L. (1753)
                       5 '227' Genus Apocynum nom. inval. see Genus Apocynum L. (1753)