Shrub to 1.8 m high, epiphytic, branched, the branchlets subquadrangular, canaliculate. Leaves petiolate; the petioles slender, to 2 cm long; the lamina elliptic to ovate-elliptic, basally attenuate, apically acuminate to 8 cm long and 4.2 cm wide, chartaceous, dark green, densely and minutely black-tuberculate above, paler beneath. Inflorescences cymose, few-flowered. Flowers with the calyx campanulate, to 1.8 cm long, the tube short, + 5-angular, slightly unequal, the lobes ovate-triangular, to 1.4 cm, chartaceous, acute to cuspidate at the apex, the margins scarious; corolla white, infundibuliform, 3.3-4.0 cm long, deeply lobate, the lobes + unequal, ovate-triangular, acute to acuminate at the apex, to 1.5 cm long, the margins inconspicuously erosulose; stamens ? exserted, the filaments inserted ca. 6-7 mm above the base of the corolla tube, the anthers 5-6 mm long, obtuse at the apex, deeply bilobate at the base, longitudinally dehis-cent; ovary pyriform, the style filiform, the lobes of the stigma ? flattened, erect, to 2.5 mm long, papillate on the inner surface. Capsule unknown.
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