Medium-sized hard-wooded tree, with blackish flaky bark. Twigs, petioles, leaf buds and domatia +-persistently pale tawny pubescent, parts elsewhere glabrescent. Twig c. 5 mm ø apically, stout, becoming terete, pale brown. Leaves 30-60 by 9.5-18 cm, large, narrowly oblong, thinly coriaceous; base unequal, cordate; acumen to 3 cm long, prominent; nerves 22-28 pairs, prominent beneath, +-shallowly depressed above ascending at 50°-60°, straight but arched at the margin and running along parallel to it before terminating; with small pubescent pore-like axillary domatia; tertiary nerves +-densely scalariform, very slender but distinctly elevated beneath; petiole 15-18 mm long, c. 5 mm ø, short, relatively stout, panicle to 6 cm long, short, to 2-axillary or ramiflorous, singly branched. Flower buds to 3 by 2 mm, ovoid-lanceolate. 2 outer sepals ovate, acuminate; 2 inner suborbicular, acute. Stamens 15, subequal; filaments compressed, rather broad, tapering; appendages very slender, c. 1.5 as the ellipsoid anthers. Ovary ovoid, surmounted by a prominent spindle shaped stylopodium of equal length, with a prominent intervening constriction; style shorter than stylopodium but prominent, tapering. Fruit pedicel short; 2 longer calyx lobes to 11 by 15 cm, narrowly spatulate, obtuse, c. 3 mm broad above the to 9 by 7 mm ovate saccate thickened base; 3 shorter lobes to 12 by 8 mm, ovate, thin, saccate, appressed to nut; nut to 12 by 8 mm, ovoid, prominently apiculate, resinous.
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