Strophanthus wallichii var. robustus Pierre ex Gilg
In Engler & Diels, Monogr. Afrik Pflanzen Fam. 7: 16 (1903).
HOLOTYPE. — Pierre 4412 (B, destroyed).
LECTOTYPE. — Pierre 4412 (P), Vietnam, Dông Nai, designated here .
Beentje, Meded. Landb. Wag. 82-4: 151 (1982) designated a P specimen of Pierre 4412 as a lectotype. However, only one specimen was found at P which had been labelled isotype by BEENTJE. Therefore, the new designation here should stand unless the specimen marked as lectotype by BEENTJE can be located.