Large trees to about 30 m. tall, the leafy twigs stout and thinly rimose. Leaves large and coriaceous, broadly oblong to oval, abruptly and shortly acuminate, rounded and inconspicuously decurrent at the base, about 20-60 cm. long and 6-20 cm. broad, entire, glabrous; petiole stout and canaliculate, 1-2 cm. long. Inflor-escence paniculate, many-flowered, the stout puberulent peduncle about as long as the subtending leaves. Flowers sessile; calyx lobes broadly ovate to reniform, obtuse or rounded, 6-8 mm. long; petals oval, 2.5-3.0 cm. long, yellow. Fruit-subglobose, deep brown and roughly verrucose, 10-15 cm. long and broad, the calycine rim indefinitely erose to subentire, median or submedian, the margin of the orifice convex, rough and irregularly muricate with the bases of the abscissed veins.