Liana without interpetiolar glandular fields or noticeable pseudostipules; branchlets subterete, flattened at nodes, sometimes with conspicuous V-shaped interpetiolar ridges, longitudinally striate when dried, noticeably lenticellate, appressed puberulous, sometimes hollow at the very center. Leaves 2-foliolate, sometimes with a tendril; leaflets more or less elliptic, acute, the base broadly cuneate to rounded, 8.2-12.2 cm long and 4.4-8.6 cm wide, membranaceous to chartaceous, secondary veins 4-5 on a side, pubescent with scattered simple trichomes above, beneath with simple trichomes at least on the nerves, some-times glabrescent, with axillary recesses beneath, these fringed with short trichomes, usually with a few large plate-shaped glands along lower part of midvein, drying olive to reddish-brown above, greenish-brown to olive with reddish veins and veinlets beneath; tendril simple, 10-14 cm long; petiolules 1.2-2.8 cm long, petiole 2.0-2.9 cm long, short-puberulous. Inflorescence a terminal panicle, the branches appressed short-puberulous. Flowers with the calyx cupular, subtruncate, 5-6 mm long and 4-5 mm wide, 5-denticulate with teeth ca. 0.5 mm long, puberulous, usually drying pale pinkish; corolla magenta (Stern et al.), tubular-infundibuliform, 3.6-4.5 cm long and 0.8-1.2 cm wide at the mouth, the tube 2.4-3.2 cm long, the lobes 0.8-1.2 cm long, puberulous on tube inside and on the lobes, tube inside mostly glabrous, pubescent at the level of stamen insertion; stamens didynamous, the anther thecae divaricate, glabrous or pilose, usually reflexed forward from the base, 2.0-2.5 mm long, the connective apiculate ca. 0.5 mm, the longer filaments 1.6-1.7 cm long, the shorter filaments 1.1-1.2 cm long, the staminode 3-4 mm long, inserted 9-10 mm from base of corolla tube; pistil 2.3-2.4 cm long, the ovary cylindrical, densely minutely lepidote, 1.5-2 mm long and 1 mm wide, the ovules 4-seriate; disc pulvinate, 1 mm long and 1 mm wide. Capsule elongate-linear, 50-43 cm long and 0.9-1.0 cm wide, the valves somewhat compressed, with two submedian ridges and an inconspicuous median furrow between them, minutely warty but essentially glabrous; seeds thin, bialate, 0.8-0.9 cm long and 3-3.7 cm wide, body brown, wings hyaline membranaceous at the tips, brown at the base, indistinctly demarcated.
Home