Vine, twigs fistulose, scurfy-pubescent with stellate and dendritic hairs. Leaves ovate, ca. 8 cm long, apically acuminate, basally rounded or subtruncate, membranaceous, pubescent above with stout simple hairs, beneath glabrate with scattered minute, simple or pulverulent hairs, veins ca. 4 on each side of the mid-vein; petioles short or elongate, to 4.5 cm long, glabrescent. Inflorescence a solitary flower in the leaf axil; pedicels slender, elongate, 3 cm long, pubescent with dendritic and stellate hairs. Flowers with the calyx cup 4 mm deep, pubescent with simple and dendritic hairs, the 10 teeth 4-5 mm long, pubescent with mostly simple hairs; corolla "pale purple," ca. 18 mm long, the margin almost entire, the interplicae thickened, glabrous; stamens (fide Bitter) equal, the filaments 1 mm long, glabrous, somewhat thickened, the anthers broadly lanceolate-ellipsoid, 6 mm long and 2 mm broad at the base, emarginate at each end; ovary ellipsoid, 2 mm long, 1.3 mm broad, glabrous, the apex abruptly attenuate into a straight, glabrous style ca. 9 mm long which exceeds the anthers, the stigma subglobose, obtuse. Fruits unknown.
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