Tree 12-15 m. high, the trunk 20-25 cm. in diam., the pubescence of stellate hairs, the young branchlets puberulous to tomentellous. Leaves long-petiolate, the petiole slender, subterete, 3.5-7 cm. long, puberulous; blade oblique-obovate to oblique-elliptic, much inaequilateral and cordate at the base, obtuse or rounded at the apex, 17-30 cm. long and 8-23 cm. wide, subcoriaceous, the margins slightly and irregularly undulate, the upper surface glabrous or scatteringly puberulous along the nerves, the lower surface sparsely puberulous, 6-to 8-palmate-radiate-nerved, the nervation reticulate and prominent beneath. Flowers cauliflorous, fasciculate, the pedicel slender, 0.8-2 cm. long, sparsely and shortly puberulous, ebracteolate; calyx campanulate, 5-lobulate, 12-15 mm. long and ca. 9 mm. broad, sparsely and shortly puberulous without, appressed-sericeous within, the lobes more or less triangular, obtuse and ca. 3 mm. long; petals obovate or elliptic, abruptly unguiculate, obtuse or rounded or seldom emarginate at the apex, 15-20 mm. long and 9-10 mm. wide, white, glabrous at the base to tomentellous on the upper part outside, glabrous inside; staminal column ca. 4 cm. long, white, glabrous, divided into 5 antheriferous lobes 10-15 mm. long, each lobe bearing 6 sessile anthers; ovary shortly tomentellous, 5-celled; style somewhat longer than the staminal column, puberulous; stigma capitate and briefly lobulate. Capsule ovoid or subglobose, subcoriaceous, up to 4 cm. in diam., shortly puberulous, 5-celled, each cell 1-seeded.
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