Liana, young branches stellate-hirsute, older ones with distinct longitudinal cork-ridges. Leaves rather thin, elliptic-oblong to ovate-oblong, 7½-l6 by 4-6½ cm, 4-7-nerved; obtuse at the base, slightly acuminate at the apex; stellate-hirsute, soon glabrescent, with sunken midrib and slightly prominent nerves and venation above; stellate-hirsute, soon glabrescent, with prominent nerves and venation beneath. Petiole 7-11 mm. Inflorescences axillary, 1-2½ cm, 8-12-flowered. Pedicel 2½-4 mm long. Sepals subequal, transverse-oval, 2.7 by 3.5 mm, stellate-hirsute outside (hairs with 3-5 subequal, up to 400 µ long branches). Corolla waxy yellow, 8 mm, tube 2½ mm; midpetaline field 4 by 2 mm, densely appressed-hairy (hairs mainly 2-, few 3-branched, up to ca 1250 µ total length); lobules 3.8 by 3 mm, without distinct venation, entire. Stamens inserted 0.8 mm above the corolla-base; filament 1 mm long, 0.6 mm broad at the base; anther 1.8 mm long, 1 mm broad, 0.7 mm thick, acuminate (sterile acumen 0.5 mm) at the apex, cordate at the base. Ovary 1.4 by 1.1 mm, lower 0.8 mm glabrous, upper 0.6 mm stellate-hirsute; stigma conical, with 10 ridges. Fruit unknown.
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