Small, smooth-barked buttressed tree. Twigs, petioles, domatia, leaf bud, stipules and parts of petals exposed in bud densely persistently pale tawny pubescent; midrib above (densely puberulent in young trees) and panicle glabrescent. Twig c. 2 mm ø apically, ribbed, becoming terete, red-brown. Buds small, ovoid; stipules to 5 mm long, linear, fugaceous. Leaves (7-) 12-25 by (2.5-)4-7 cm, narrowly elliptic-oblong to lanceolate, thinly coriaceous; base unequal, cuneate abaxially, cordate adaxially; acumen to 2 cm long, slender, subeaudate; nerves 17-22 pairs, slender but prominent beneath, obscurely depressed above, arched, at 50°-60°, with axillary tomentose domatia, without secondaries; tertiary nerves densely scalariform, very slender but evident and distinctly elevated beneath; midrib slender but prominent beneath, elevated above; petiole 5-7 mm long, short. Panicle to 5 cm long, 1-axillary to ramiflorous, slender, rather lax, singly branched; branchlets to 1.5 cm long, bearing to 4 flowers; bracteoles minute, deltoid, fugaceous. Flower bud to 3 by 2 mm, ellipsoid. 2 outer sepals lanceolate-acuminate; 3 inner broadly ovate, shortly acuminate. Stamens 15, slightly shorter than style at anthesis; filaments compressed at base, tapering and filiform in the distal 1/3; anthers subglobose; appendages c. 2.5 times length of anthers, slender. Ovary and stylopodium hour-glass shaped, the ovary slightly the broader; style short but distinct. Fruit pedicel short, base of fruit impressed. 2 longer calyx lobes to 12 by 3 cm, spatulate, obtuse, c. 3 mm broad above the to 9 by 8 mm ovate deeply saccate thickened base; 3 shorter lobes to 7 by 8 mm, broadly ovate, mucronate, shorter than nut. Nut to 11 by 8 mm, broadly ovoid, shortly apiculate.
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