Very large buttressed tree. Parts of petals exposed in bud densely persistently pubescent; twig apices, leaf buds and stipules ± persistently densely tawny puberulent; petiole, nervation beneath, calyx and panicle sparsely caducously so. Twig c. 4 by 2 mm, stout, +-compressed, becoming dark brown, terete. Buds c. 4 by 3 mm, ovoid-falcate, acute. Stipules to 12 by 5 mm, lanceolate, acute, fugaceous. Leaves (9-) 10-18 by (4-)5-8 cm, oblong to narrowly obovate, coriaceous; base cordate or obtuse; apex tapering abruptly to 1 cm long acumen; nerves 18-22 pairs, prominent beneath, typically shallowly depressed above, at 45°-70° the base excepted; tertiary nerves densely scalariform, elevated beneath, evident above; midrib stout beneath, evident and ± depressed above; petiole 1-2 cm long, stout. Panicle to 17 cm long, lax, pendant, terminal or axillary; singly branched, branchlets to 11 cm long, bearing to 5 flowers. Flower bud to 10 by 4 mm, large, fusiform. Sepals lanceolate, slender, subacuminate, slightly unequal. Stamens 15, shorter than style; filaments rather short, broad and compressed at base, tapering; anthers narrowly oblong; appendages slender, scarious near apices, c. 2.5 x length of anthers; ovary ovoid, puberulent; style stoutly columnar, obscurely trifid at apex, sparsely puberulent in the basal 1/2. Fruit pedicel c. 5 mm ø, very stout and prominent, expanding into the receptacle. 3 longer calyx lobes to 18 by 2.5 cm, lorate-lanceolate, obtuse to subacute, not tapering above the concave incrassate base; 2 shorter lobes to 13 by 1.5 cm, narrower, acute but otherwise as in longer lobes. Nut to 2.5 by 1 cm, narrowly ellipsoid-ovoid, prominently apiculate.
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