Tree 8-20 m. Twigs 2-3.5 mm diameter, early glabrescent, hairs scattered, 0.1 mm; older twigs somewhat cracking, with many inconspicuous lenticels. Leaves chartaceous or usually (sub)coriaceous, elliptic or oblong, 9-22 by 3.5—10(—12) cm, base narrowly rounded or cuneate, apex acute-acuminate; upper surface (olivaceous or yellowish) brown, lower surface greyish, (late) glabrescent, hairs dense, scale-like, 0.1 mm or less, mixed with few brownish hairs 0.1-0.2 mm; papillose or usually not; dots absent; midrib raised above, lateral nerves 8—12(—15) per side, at 45-80° to the midrib, flat or sunken above, lines of interarching and venation indistinct; petiole 10-20 by 1.5-3 mm; leaf bud (5-) 7-15 by 2-3 mm, hairs 0.1 mm. Inflorescences with hairs 0.1 mm, between the leaves or below, or sometimes in to 5 cm long short-shoots resembling a compound inflorescence, ending in a vegetative leaf bud; male and female inflorescences somewhat as in M. fragrans: short-pedunculate, either simple or at the apex 2-(or 3-)forked, or each of the branches forking again, with age developing into slender or thickish scar-covered up to 15 mm long brachyblasts ending with 1-3 (or 4) flowers, buds almost equal in size; bracts caducous; in male: peduncle 5-15(-20) by 2-2.5 mm, in female (1—)3—10 mm long; flowers with hairs less than 0.1 mm. Male flowers: pedicel 7-12(-14) by 1(—1.5) mm, bracteole rounded or reniform, 2-3 mm, persistent or late caducous; buds (ovoid-) oblong, 7-11 by 4-6 mm, the apex rounded, cleft 1/5-1/8, lobes 0.4-0.8 mm thick. Androecium 5-8 mm long; androphore 2-2.5 mm long, minutely pubescent or almost glabrous; synandrium somewhat conical, 4-6 by 1.5-2(-2.5) mm, thecae 16-20(-24), sterile apex blunt or irregular in shape, 0.3-0.5(-l) mm. Female flowers: pedicel (2-)4-12 by 1.5 mm, bracteole late caducous; buds 7(-10) by 5-6 mm, cleft 1/5-1/4; ovary narrowly ovoid, (3-)4-6 by 2-3(-3.5) mm, hairs sparse or dense, less than 0.1 mm, style slender, 1.5 mm. Fruits single or paired, rather stout, ovoid-ellipsoid, coarsely wrinkled on drying, 4.5-8 by 3.5-4.5 cm, apex ± blunt or subacute, (usually) glabrescent, hairs scattered, scale-like, 0.1 mm long or less, usually persistent towards the insertion of the stalk; pericarp 10(—15) mm thick; seeds ellipsoid or oblong, (2-)2.5-3(-4) cm; fruiting pedicel stout, 4-11 mm long.
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An evergreen tree. It grows 8-15 m tall. The small branches are stout. The leaves are 9-22 cm long by 4-11 cm wide. They are shiny and dark green on the top side and silvery underneath. The flowers are brown and have a scent. The fruit are 7 cm long by 4 cm wide and oval. The seeds are 3 cm long by 2.5 cm wide. They have a red aril of fleshy layer over them.