Alstonia sect. Monuraspermum R.Br. in Pacific Sci. 3: 141. 1949
- ≡Alstonia R.Br. sect. Dissuraspermum (A. Gray) Benth. ser. Occidentales Pichon in Bull. Mus. Hist. Nat. (Paris) 19: 297. 1947
Type: Alstonia spectabilis R.Br.; Alstonia spectabilis R.Br.
