Tree, tall, commonly 15-30 m. high or even more, evergreen, the trunk attain-ing 2 m. in diam., often strongly buttressed, the buttresses up to 2 m. in height, the branchlets tomentose. Leaves rather thick-petiolate, the petiole 0.8-1.3 cm. long and ca. 0.2-0.3 cm. in diam., tomentellous, the blade oblong or oblong-el-liptic, sometimes slightly oblong-obovate, rounded and asymmetric at the base, acuminate at the apex, 7-40 cm. long and 3-15.5 cm. wide, subcoriaceous, the margins irregularly and acutely serrate especially above the middle, green and loosely arachnoid to glabrescent above, brownish-arachnoid beneath, 3(-4)-pal-minerved, the nervation prominent beneath. Inflorescences of axillary or terminal thyrses. Flowers rather small, ca. 1.3 cm. long, the pedicel 0.9-1.2 cm. long and shortly tomentellous; bractlets 9, free, narrowly elliptic, acute, ca. 7 mm. long and 1.25-2 mm. wide, fleshy, shortly tomentellous on both sides, deciduous; sepals free, oblong-lanceolate, acute, ca. 11 mm. long and 3.5 mm. wide, fleshy, shortly tomentellous without, glabrous within; petals spatulate, ca. 13 mm. long and 4.5 mm. wide, white or yellow, glabrous except the inner minutely hirsute base; stamens 5-adelphous, the phalanges ca. 9 mm. long, the united base of each phalanx ca. 2-2.5 mm. long and shortly tomentellous; anthers ca. 1 mm. long; ovary sessile, pyriform, deeply 5-sulcate, ca. 4.5 mm. long and 3.5 mm. in diam., densely seri-ceous; style ca. 5 mm. long, shortly tomentellous; stigma capitate and obscurely 5-lobulate. Capsule ligneous, narrowly elliptic, contracted towards both ends, deeply 5-sulcate and with 5 prominent angles, 2-2.5 cm. long and ca. 1 cm. in diam., shortly brownish-tomentellous; seeds more or less oblong, ca. 2.5-3 mm. long and 1 mm. wide, the wing ca. 8 mm. long and 3 mm. wide.
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