TABERNAEMONTANA ventricosa A. DC. [family APOCYNACEAE], Prodr. 8: 366 (1844); Huber in F.W.T.A. ed. 2, 2: 66 (1963); Codd in F.S.A. 26: 269 (1963); Leeuwenberg in F.Z. 7 (2): 443 (1985) & in Revision Tabernaemontana 1: 71, t. 18, photo 4 (1991); K.T.S.L.: 487, map (1994). Type: South Africa, Natal, near Umgeni R., Krauss 146 (G, holo., BM, K, MO, TCD, iso.)
TABERNAEMONTANA usambarensis Engl. [family APOCYNACEAE], in Abh. Preuss. Akad. Wiss. 1894: 36 (1894); P.O.A. C: 316 (1895); Hamilton, Field Guide Uganda For. Trees: 166 (1981). Type: Tanzania, Lushoto District, Mashewa, Usambara, Holst 8810 (K, lecto., chosen by Leeuwenberg)
Conopharyngia ventricosa (A. DC.) Stapf [family APOCYNACEAE], in F.T.A. 4, 1: 149 (1902)
Conopharyngia usambarensis (Engl.) Stapf [family APOCYNACEAE], in F.T.A. 4, 1: 148(1902); U.O.P.Z.: 209 (1949); T.T.C.L.: 49 (1949); I.T.U. ed. 2: 27 (1952); K.T.S.: 46 (1961)
Conopharyngia rutshurensis De Wild. [family APOCYNACEAE], Pl. Bequaert. 1: 599 (1922). Type: Congo (Kinshasa), Rutshuru R., Bequaert 6224 (BR, holo.)
Sarcopharyngia ventricosa (A. DC.) Boiteau [family APOCYNACEAE], in Adansonia II (16): 272 (1976)