Climber 2-10(-15) m; sparsely, rather stiffhairy on stem and inflorescential branches, often glabrescent. Leaves spirally arranged, rarely sub-opposite, herbaceous to thinly coriaceous, above (sub)glabrous, green, beneath (sub)glabrous to sparsely hairy, ovate-elliptic to oblong, top acute, sometimes 1 cm acuminate, (0-)1-3 mm mucronate, base rounded or shallowly cordate, 5-18 by 2½-9 cm, pinninerved, nerves 4-8 pairs, reticulation distinct; petiole 1-4(-5) cm. Glands on the lamina in 2-7(-8) pairs, in two rows about halfway margin and midrib, ½-1½ mm ø; petiolar glands 2, opposite, 1-3 mm ø, ± halfway to ¼ from the base of the petiole. Stipules minute, linear, c. 1 mm. Inflorescences sessile, 4-20-flowered, with a central tendril, the two lateral main branches up to 15 mm stalked; pedicels 1-2(-3) cm; bracts and bracteoles linear, acute, with finely hairy margin, 1-2½ mm. Tendrils 8-20 cm. Flowers thinly hairy to glabrescent, 2-3(-3½) cm ø; stipe 5-15(-22) mm; hypanthium saucer-shaped, c. 2 by 7-10 mm. Sepals lanceolate, obtuse, 10-15 (-20) by (3-)4-5 mm. Petals lanceolate, obtuse, 8-15 by 3-4 mm. Corona double; outer corona filaments 6-10 mm, often strongly sinuate, inner filaments (1-)2-3 mm; inner corona 2-3 by 2-3 mm, as a densely plicate 'collar', with finely serrate edge, ± curving inwards over the c. ⅓ mm high disk. Androgynophore 5-6(-7) mm. Filaments connate into a ± inflated or cup-shaped tube entirely enveloping the ovary, (3-)5-10(-11) by 2-3 mm, free part of filaments 3-5 mm; anthers oblong, obtuse, 2½-4(-5) by 1-1½ mm. Ovary on gynophore up to 1½ mm, ellipsoid to obovate, hirsute, 2-4(-5) by 1½-2(-2½) mm; styles 3, free or up to 3 mm connate; style arms 3-7 mm; stigmas 1-1½ mm ø. Fruits 2-7 per inflorescence, globose to ellipsoid, (1½-)2-2½ by 1½-2 cm, thinly hispid; pericarp coriaceous, c. 1 mm ø. Seeds c. 40-70, obovate, c. 4-4½ by 3½-4 by 1½ mm, 6-9 pits per ø.
Home