Trees, unarmed, the trunk sometimes buttressed, the wood very light. Leaves simple, petiolate, the stipules broadly ovate, the blade generally cordate, palmi-nerved, with tufted hairs. Flowers grouped toward the tip of the branchlets, axillary, solitary, hermaphrodite, actinomorphous, pedicellate, 3-bracteolate, the bracteoles fugacious; receptacle eglandular; calyx tubiform, slightly funnel-shaped, 5-lobate and with unequal lobes, coriaceous, with tufted hairs outside, deciduous; petals 5, adnate to the base of the staminal column, fleshy, with tufted hairs outside; stamens numerous, the staminal column elongate, shortly 5-lobate, antheriferous from about the middle to the apex; anthers l-thecate, sessile, confluent, anfractuose, extrorse, longitudinally dehiscent; ovary superior, sessile, 5-celled, the cells many-ovulate; style filiform; stigma exceeding slightly the staminal column, spirally 5-sulcate. Capsules subligneous, elongate, loculicidally 5-valvate, densely lanate within; seeds numerous, small, pyriform, imbedded in the hairs of the capsule; coty-ledons broad, the margins involute.
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