Treelet (up to 3 m high), tall epiphytic or terrestrial shrub, or woody climber. Leaves (sub)sessile or distinctly petioled, (oblong-)obovate, rarely elliptic, 20-35 by 7-17 cm, thin-coriaceous, base (narrowly) cuneate or attenuate, usually decurrent, auriculate, apex blunt to broadly cuneate or shortly acuminate; nerves 8-10 pairs, prominulous on both sides; petiole (0-)2-5 cm, axillary scale adnate to the petiole, large (nearly 1-1½ cm), much broader than the petiole, distinctly bilobed. Inflorescences broadly corymbose, laxly branched, with up to c. 30 flowers; pedicels 0.5-2 cm, at the base to somewhat less than halfway provided with a pair of ovate to lanceolate, (0.5-)1-1.5 cm long bracteoles. Calyx campanulate, 1.25-2.5 cm long, confluent at base. Corolla-tube funnel-shaped, 2.5 cm. Anthers oblong, 0.5-1 cm long, cells free in their basal half. Stigma peltate, funnel-shaped or discoid, 2.5-4 mm ø. Fruits subglobular to spindle-shaped, up to 7 cm long; calyx more or less spreading.
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