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Information Sarmentose shrub 1–3.5 m high or liana to 20 m long, deciduous, flowers appearing with the leaves, trunk to 10 cm in diameter, bark reddish brown or grey-brown; branches scabrid; branchlets densely hispid; latex clear, white or yellow. Leaves opposite; blade often convex, ovate or elliptic, 8–24 cm long, 5–17 cm wide, base cuneate, rounded or subcordate, apex obtuse, acute or acuminate, densely hispid on both surfaces but glabrescent above; petiole 1–5 mm long. Inflorescence 1–12-flowered, pedunculate, fairly congested, densely hispid in all parts; pedicels 3–20 mm long. Flowers fragrant; sepals narrowly ovate or linear, 9–27 mm long, acute; corolla white turning yellow, red-spotted inside; corolla tube 13–24 mm long, corolla lobes ovate, 3–16 mm long, 4–9 mm wide, narrowing into the 9–20 cm long pendulous tails, corona lobes 1–3 mm long. Fruit hard, the mericarps opposite-divergent, cylindrical or nearly so, 15–47 cm long, 1–2.6 cm in diameter, tapering to a knob, lenticellate, hispid and glabrescent; seeds 11–21 mm long, densely pubescent, with a stalked coma 6–14 cm long. 

Information Shrub or woody climber; stems hispid-tomentose when young, becoming glabrescent and scabrid with age; bark grey or black, dotted with lenticels; Leaves subsessile, elliptic to broadly elliptic or ovate-elliptic, 8-16 cm long and 4-5-10 cm broad, obtuse at the base, apex rounded to abruptly acute or apiculate, densely hispid-tomentose when young, glabrescent and scabrid above when mature, drying dark brownish above, paler below; secondary nerves 7-10 on each side, oblique, distinct below; petiole 0-5 mm long, channelled above; axillary glands present. Inflorescence cymose, compact, 1—several-flowered, terminal on short branches, appearing together with or before the leaves, hispid; peduncles short; bracts narrowly lanceolate, 6 mm long; pedicels slender, 7-10 mm long. Flowers cream to yellowish with red or purple markings, scented. Calyx hispid-tomentose, 10-14 mm long; sepals linear-lanceolate. Corolla pubescent without; tube narrowly cylindric at the base for 7-9 mm then campanulate-infundibuliform for 7-10 mm; lobes produced into long, slender, pendulous appendages, 6-12 cm long; throat scales very short, densely papillose. Stamens included, subsessile; anthers lanceolate, acuminate, sagittate, 4-5 mm long, polliniferous in the upper half, shortly apiculate. Ovary of 2 free carpels, densely tomentose; style filiform, 10-12 mm long; stigma enclosed by the anthers, capitate, with a reflexed frill at the base. Fruit of 2 follicular mericarps eventually spreading at 180°; follicles 20-40 cm long and 2-3-5 cm broad at the base, tapering gradually to 5-8 mm and then abruptly expanding to 10-14 mm at the apex, brown, glabrous, longitudinally striate and markedly lenticellate. Seeds lanceolate-oblong, 14-16 mm long, tomentose, light brown; awn plumose, 10-15 cm long, with a naked stalk 3-4 cm long; cotyledons oblong; endosperm scanty.

Information Sarmentose shrub, 1–3·5 m. high, or liana, 2·5–20 m. high, deciduous, flowers and leaves appearing at the same time; latex clear, white, or yellow. Roots thick and fleshy. Trunk up to 10 cm. in diam.; bark reddish-brown or grey-brown; branches scabrous as the result of persistent hair-bases; branchlets densely hispid. Leaves petiolate; petiole 1·5–5 mm. long; lamina dark green, paler beneath, ovate or elliptic, less often obovate or nearly circular, 1·1–2·3 times as long as wide, in mature leaves 8–23·5 x 5–16·5 cm. cuneate, rounded, or subcordate at the base, obtuse, acute, or acuminate at the apex (acumen 1–11 mm. long), papyraceous or chartaceous, in young leaves densely hispid on both sides, in older leaves glabrescent above, with 7–13 pairs of secondary veins; tertiary venation conspicuous beneath. Inflorescence 1–12-flowered, pedunculate, fairly congested, densely hispid in all parts; pedicels 3–14(20) mm. long; bracts sepal-like. Flowers fragrant. Sepals subequal, narrowly ovate or linear, 9–20(27) x 1·5–3·5 mm., acute, densely hispid. Corolla tube 13–24 mm. long and widening at almost 1/2-2/3 of its length into a cyathiform upper part, at the mouth (6)8–14 mm. wide, densely hispidulous outside except for the base, sparsely hispidulous inside except for the base; corona lobes Ungulate, 1–3 x 1–2·4 mm., minutely puberulous or papillose; corolla lobes ovate, 3–16 x 4–8·5 mm., gradually or fairly abruptly narrowing into the pendulous tails; lobes (including the tails) 100–160(–200) mm. long, puberulous except for the inner side of the tails. Stamens included for 2·7–7·3 mm.; filaments curved, 0·6–1·2(2) mm. high; anthers 3·7–6·2 x 0·6–1·1 mm., glabrous; acumen 0·1–0·5 mm. long. Ovary 0·8–1·7 x 1·5–2·3 mm., densely hispid with long erect hairs, sometimes glabrous at the base; style 6·5–13·5 mm. long; clavuncula 1–1·8 x 0·9–1·3 mm.; stigma minute. Follicles divergent at an angle of 180°, long tapering toward the apex and ending in a small or large knob, rarely without knob and then with an obtuse apex, 15–47 cm. long and 1·3–2·6 cm. in diam.; exocarp thick and hard, densely hispid or pubescent in young fruits and glabrescent when maturing, especially on the adaxial side densely lenticellate. Seeds with the grain 11–21 x 2·5–4·5 x 1·5 mm., densely pubescent; rostrum glabrous for 20–57 mm. and bearing a coma for 20–42 mm.; coma 42–80 mm. long.

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