Melodinus oblongus Pierre ex Spire
Contr. Apocyn.: 121 (1905).
LECTOTYPE. — Spire 51 (HM), Laos, Xieng Khouang, designated by L´y, Feddes Repert. 97: 418 (1986).
Second step lectotypification, designated here (there were two undifferentiated specimens of Spire 51 at HM).