Apocynaceae s. str. do Parque Nacional da Serra da Canastra

inventory for the Apocynaceae s. str. occurring in the Serra da Canastra National Park, located in southwestern Minas Gerais, is presented in this study. The floristic survey reported 30 species from 13 genera. Subfamily Rauvolfioideae is represented by 11 species belonging to five genera: Aspidosperma, Condylocarpon, Hancornia, Himatanthus and Tabernaemontana). Subfamily Apocynoideae is represented by 19 species belonging to eigth genera: Forsteronia, Mandevilla, Mesechites, Odontadenia, Peltastes, Prestonia, Secondatia and Temnadenia. Keys for the identification of the genera and species, descriptions, illustrations, and comments on geographical distribution of the species are presented.