the anther thecae divaricate, 3 mm long, the longer filaments 1.7-2.0 cm long, shorter filaments 1.1-1.4 cm long, the staminode 1-3 mm long, inserted 1.2-1.4 mm from base of corolla tube; pistil 2.5-2.8 cm long, the ovary linear-oblong, more or less tetragonal, 3 mm long and 1-1.5 mm wide, densely lepidote, minutely papillate, the ovules 2-seriate in each locule; disc annular pulvinate, 1 mm long and 2.5 mm wide. Capsule linear, acute to obtuse, flattened, 12-46 cm long and 1.3-2.5 cm wide, the surface black, conspicuously verrucose- tuberculate, sometimes lepidote between tubercles, the tubercles sometimes short and little more than papillae; seeds 1.2-1.8 cm long and 3.9-5.1 cm wide, the wings membranaceous, brown, sometimes with the extreme margin hyaline, not well demarcated from the seed body.
Liana to at least 10 cm in diameter, the bark gray and conspicuously orange- lenticellate; stem with 4 phloem arms in cross section; branchlets variable, sub- tetragonal to subterete, more or less longitudinally striate, glabrous to lepidote or puberulous, brownish when fresh, the nodes normally with interpetiolar glandular fields sharply limited above by a more or less V-shaped line con- necting opposite petioles; pseudostipules lacking. Leaves 2-foliolate, sometimes with a tendril; leaflets more or less ovate, acuminate to obtuse, rounded to broadly cuneate, 5.2-17 cm long and 2.4-11.8 cm wide, chartaceous to mem- branaceous, secondary veins (3-) 4-6 on a side, the basal pair usually not parallel to the others, scattered lepidote especially on the veins, pubescent beneath with long simple trichomes in leaf axils and sometimes along the base of the main veins, above usually minutely puberulous at the base of the mid- vein, usually drying greenish-olive with reddish veins and veinlets beneath; tendril simple, 8-20 cm long; petiolules 1.0-4.2 cm long, petiole 1.3-5.1 cm long, lepidote and puberulous at least above. Inflorescence a few-flowered axillary panicle, the branches lepidote, each pedicel subtended by a bract and with 2 bracteoles, these minute, subulate, ciliate. Flowers with sweet slightly spicy aroma, the calyx tubular-campanulate, strongly bilabiate, membranaceous, 1.8- 2.4 cm long and 0.8-1.2 cm wide, white when fresh, strongly lepidote or lepidote only at the base; corolla lavender to magenta with a white throat, tubular- campanulate, 4.5-7.9 cm long and 1.1-2.1 cm wide at the mouth, the tube 3.2-5.7 cm long, lobes 0.7-1.8 cm long, pubescent outside with simple multi- cellular trichomes, the lobes ciliate-fringed and pubescent, the tube mostly glabrous inside, pubescent at the level of stamen insertion; stamens didynamous,