Monographs Details: Mandevilla duidae (Woodson) Woodson
Authority: Maguire, Bassett & Wurdack, John J. 1958. The botany of the Guayana Highland--Part III. Mem. New York Bot. Gard. 10: 1-156.
Family:Apocynaceae
Description:Distribution and Ecology - VENEZUELA: Amazonas: Maguire 4" Maguire Jr. J9109, Cerro Duida, summit of Culebra Peak, alt. 1600 m, April 22-24, 1949, flowers yellow. Maguire, Cowan & Wurdack 29663, Cerro Duida, Rio Cunucunuma, mossy forest, ridge Avest of Cano Culebra, 1800 m alt., Nov 22, 1950, vine with yellow flowers. Maguire, Cowan & Wurdack 29663, Cerro Duida, Rio Cunucunuma, open scrub, ridge west of Cano Culebra, 1800 m alt., Nov 22, 1950, vine withyellow corollas, orange outside, fruit broAvn-red. Maguire, Cowan & Wurdack .19809-A, Cerro Huachamacari, Rio Cunucunuma, cumbre, 1700 m alt., Dec 4, 1950.

Discussion:This species was originally described in the genus Salpinctes, from a fruiting specimen. It suggests a place in the neighborhood of ,1/. Jancifolia Woods, and M. bentliamii (A. DC.) K. Sch. in Woodson's suggenus Exothostemon. The leaves are up to 12 mm wide; they have the usual glands along the midrib on the upper side. The sepals are about 3 mm long; the infundibuliform corolla has the proper tube about 3.2 cm long, the throat 2 cm long, the lobes 1.5 cm long; the anthers are 6 mm long, the ovary is slightly hairy, the nectaries are concrescent into a ring; the hairy seeds are 7 mm long, the brilliant tawny coma 2 cm long.
Distribution:Venezuela South America|