Treelet; branches glabrous. Leaves oblong-obovate, 16-20 by 8-10 cm, herbaceous to thin-coriaceous, glabrous; base cuneate; apex blunt to slightly blunt-acuminate; midrib forked just below the apex, nerves 4-6 pairs; petioles 1.5-5 cm. Inflorescences c. 6 cm long, laxly branched, few-flowered, glabrous. Calyx 3 mm high, outside glabrous, inside at the base with colleters. Corolla c. 2 cm long, slender, outside glabrous, the hair-ring in the mouth inserted on a thickened, lobed rim, tube inside shortly patent-hairy from the mouth to c. 1-2 mm from the base, mainly on the main nerves; lobes c. 0.5 cm long. Stamens inserted at c. 5.5 mm above the base of the tube; anthers lanceolate, 3 mm long, cells free for c. 1/3, corniculate at apex, membranous and acute at base, glabrous. Style c. 1 cm, stigma ellipsoid, 1/2-3/4 mm. Fruit curved spindle-shaped, acute, 5.5 by 1.75 cm (if 2-seeded broad-ovoid, shortly stipitate, 4 by 2 by 1.25 cm).
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