Peplonia is a species of plants in the Apocynaceae first described as a genus in 1844. The entire genus is endemic to Brazil. Species 1. \n* Peplonia asteria (Vell.) Fontella & E.A. Schwarz - Brazil 2. \n* Peplonia axillaris (Vell.) Fontella & Rapini - Brazil 3. \n* Peplonia bradeana (Fontella & E.A. Schwarz) Fontella & Rapini - Espírito Santo 4. \n* Peplonia hatschbachii (Fontella & de Lamare) Fontella & Rapini - Paraná 5. \n* Peplonia hilariana E.Fourn. - Brazil 6. \n* Peplonia nitida Decne. - Brazil 7. \n* Peplonia organensis (E.Fourn.) Fontella & Rapini - Brazil 8. \n* Peplonia riedelii (E.Fourn.) Fontella & Rapini - Rio de Janeiroformerly included