STROPHANTHUS gratus Franch. [family APOCYNACEAE], in Journ. de Bot. vii. 321. —Franch. in Nouv. Arch. Mus. Paris, 3 sér. v. 256; and in Journ. de Bot. viii. 201–204; L. Planch. Prod. Apocyn. 141; K. Schum. in Engl. & Prantl, Pflanzenfam. iv. ii. 182; Gilg in Notizbl. Königl. Bot. Gart. Berlin, iii. 63. —Gilg in Engl. Monogr. Afr. Pfl. vii. 17, fig. 1 on p. 18; t. 9, fig. A, and t. 10, fig. O; Gilg, Thoms & Schedel, Strophanthus Frage, Bot. 1–19, t. 1.
STROPHANTHUS stanleyanus Hort. Angl. ex Lemaire [family APOCYNACEAE], Jard. Fleur. t. 16.
STROPHANTHUS hispidus Hardy & Gallois [family APOCYNACEAE], in Compt. Rend. lxxxiv. (1877), 261, not of A.P. DC.
STROPHANTHUS Ouabaio Holmes [family APOCYNACEAE], in Pharm. Journ. xxi. (1890), 234.
STROPHANTHUS glaber Cornu ex Holmes [family APOCYNACEAE], Pharm. Journ. xxiii. (1893), 928.
STROPHANTHUS glabre du Gabon Blondel [family APOCYNACEAE], Stroph. du Comm. 34 with fig.; Arnaud in Compt. Rend. cvii. 1162; Pax in Engl. Jahrb. xv. 384; Franchet, l.c., 258, t. 9; Planchon, l.c. 64, 66, with plate, 69, fig. 10, 83; Franchet in Bull. Soc. Linn. Paris, 2 sér. i. 4; Payrau, Strophanthus, 111–118, 161, with figs.
Roupellia grata Wall. & Hook. ex Hook. [family APOCYNACEAE], in Bot. Mag. t. 4466; Benth. in Hook. Niger Fl. 449; Van Houtte, Fl. Serr. vi. 181, t. 589; Lindl. & Paxt. Fl. Gard. i. 71, fig. 46.