Trees up to 25 m. tall, the leafy twigs relatively slender. Leaves shortly petiolate, oval, very abruptly and shortly acuminate or obtuse at the tip, broadly obtuse or rounded at the base, about 8-12 cm. long, 3-8 cm. broad, coriaceous, glabrous; petiole rather stout, about 5 mm. long. Inflorescence subterminal and axillary, paniculate, many-flowered, somewhat longer than the subtending leaves, the peduncle slender and minutely puberulent. Flowers relatively small, about 1.5-2.0 cm. in diameter; calyx lobes deltoid, 1-2 mm. long; petals unequal, about 1 cm. long, yellow, thin in texture for the family. Fruit (according to Pittier) "globose-depressed, about 4 cm. long and 5 cm. in diameter, 2-celled, slightly attenuate at base, with rather thin walls; calycinal zone bearing the persistent enlarged lobes of the calyx, the interzonal band 1.5-2.0 cm. broad."
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