Tree up to 25 m. high; the trunk straight, 0.40-1.20 m. in diam., the branchlets glabrous. Leaves 3-to 5-foliolate, the petiole terete, slightly enlarged at the base, 7-22 cm. long and glabrous, the stipules ca. 2 cm. long; leaflets with a petiolule 0.8-1.6 cm. long, the blade oblong-elliptic, sometimes slightly oblong-obovate, obtuse to subacute and narrowly decurrcnt at the base, bluntly caudate-acuminate at the apex, 11-21 cm. long and 3.5-9 cm. wide, coriaceous, glabrous above, very minutely reddish-lepidote to glabrous and with the nerves prominent beneath. Flowers ca. 16 cm. long, the pedicel 4-6 cm. long and ca. 0.5 cm. thick, shortly stellate-puberulous especially near the apex; calyx 2-lobulate, 7 cm. long and ca. 1.6 cm. in diam., the lobes more or less rounded and ca. 1.2 cm. long, shortly fer-ruginous-stellate-puberulous outside, silky-villous inside; petals oblong-linear, obtuse, 15 cm. long and ca. 2 cm. wide, white, stellate-puberulous especially out-side; staminal column cylindric, 11-12.5 cm. long, stellatc-puberulous to glabrous, without staminodes, the anthers almost sessile, the lows er half adnate to thb staminal column, ca. 5.5 cm. long; ovary subglohose, slightly 5-costate, ca. 4-5 mm. long and 5-6 mm. in diam., densely ferruginous-papillate; style up to 19-20 cm. long. Capsule unknown; seeds more or less angular, 2-2.6 cm. long, 1.7-2 cm. wide and 1-1.3 cm. thick, the testa dark brown, the witng more or less oblong, rounded to subacute, 12-13.5 cm. long and 3.5-4.5 cm. wide, brown and suberous.
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