Climber. Branchlets weakly or strongly angled; not lenticellate; glabrous or sparsely and minutely puberulent. Leaves in whorls of 3 or 4; petiole 0.3-1.9 cm long, glabrous or pubescent; blade coriaceous or subcoriaceous, elliptic to broadly elliptic, 2.2-12.5 by 0.9-5.7 cm, 1.4-4.3 times as long as wide, apex rounded to acuminate or cuspidate, base acute to decurrent onto petiole, margin weakly undulate, dark green and shining above, pale green beneath, glabrous or sparsely puberulent only on midrib beneath, glabrous or puberulent on midrib only above, midrib clearly to deeply sunken above, intramarginal nerve clear at margin, secondary veins 20-38 pairs, 65-75° from midrib, weakly prominent above and obscure to prominent beneath. Inflorescence axillary, a compound pleiochasium, sparsely or densely puberulent, 1.5-4 cm long; peduncle 0.2-2.1 cm by 0.8-1.9 mm; bracts caducous or persistent, deltoid or narrowly ovate, 2-3.1 by 1.3-2.1 mm; bracteoles two immediately beneath calyx; flowers 5-11; pedicels 0-2.6 mm long. Sepals ovate or narrowly ovate, not fleshy, 1.7-3.3 by 1-2 mm, 1-2.2 times as long as wide, apex obtuse, acute or acuminate, ciliate or not, glabrous or sparsely to densely puberulent, sometimes only on centre line. Corolla white; bud head 2-3.1 mm long which is 0.17-0.34 of bud length, globular, narrowly ovate or ovate, apex acute or acuminate; tube cylindrical, 7.6-12 mm long, 1.3-2.3 mm wide, glabrous outside, continuously pubescent except for base inside, only around stamens and more densely in a band beneath them, or very sparsely pubescent in upper half of tube to beneath the stamens, tube 2.4-5.2 times as long as lobes, 3-6.7 times as long as sepals; lobes ovate, apex rounded to acute, not ciliate or ciliate near tips only, 2-3.2 by 1.2-2.7 mm, 0.85-1.9 times as long as wide, glabrous outside, glabrous or papillate inside. Stamens inserted at 6.7-10.1 mm from corolla base which is 0.72-0.82 of tube length; filaments 0.7-1.1 mm long; anther apex 0.2-0.8 mm from corolla mouth, anthers 1.1-1.4 by 0.5-0.6 mm. Ovaries 0.6-0.8 mm high, densely pubescent all over, pubescent around base only or only on top; style 6.1-9.2 mm long; style head 0.4-0.8 mm long. Fruit yellow or orange, stalks 3.2-6.2 mm long, with 1-4 articles in a string, 1.1-4.2 mm between articles, articles 4.5-8.8 by 4.3-6.8 mm, globose, symmetrical, sparsely puberulent all over. Seeds ovoid, 4.1-5.1 by 3-3.9 by 2.8-3.6 mm.
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