Trees 3-15(-25) m tall. Bark gray-black, white spotted. Young branchlets dark purple, depressed tetragonous, longitudinally sulcate when dry. Stipules 2, ca. 1 mm; petiole 0.8-1.5 cm; leaf blade purple-red when young, abaxially greenish or glaucous when dry, adaxially dark green, elliptic, elliptic-oblong, or ovate-oblong, 8-14 × 2.5-6.5 cm, membranous when young, becoming subleathery, midvein raised abaxially; secondary veins 5-8 pairs, raised on both surfaces, curved and connected at leaf margin; tertiary veins sinuous, parallel, joined by veinlets, slightly raised on both surfaces, base broadly cuneate, rarely rounded, margin cartilaginous, involute, apex acute or shortly acuminate, with obtuse or rounded acumen. Plant monoecious. Male flowers 4-10, in terminal and axillary short pedunculate cymes; pedicels robust, slightly tetragonous, 3-5 mm, 2-bracteolate at base; sepals 4, nearly equal, suborbicular, ca. 3 mm; petals ovate, ca. 5 mm, margin membranous and subtransparent, apex obtuse; stamen fascicles connate forming a 4-lobed ring of 300-400 stamens; free part of filaments very short; anthers narrowly elliptic, 2-celled, cells longitudinally dehiscent; pistillode subtetragonous; stigma peltate, convex. Female flowers usually solitary and axillary, slightly larger than male ones; staminodes of fascicles 4; fascicle stalks complanate, lamellate, shorter than ovary, each fascicle with 6-8 rudimentary anthers; ovary globose, ca. 2.5 mm, not angular, 1-loculed; stigma peltate, convex, smooth, entire. Mature fruit ellipsoid or ovoid-ellipsoid, 3.2-3.5 × 2.2-2.5 cm, smooth; sepals persistent. Seeds 2. Fl. Jun-Jul, fr. Nov-Dec.
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An evergreen tree. It grows 30 m high. It has yellow latex. The trunks are 80 cm across. The young branches are purple-red. The leaves are opposite and oblong. They are 8-15 cm long by 3-7 cm wide. They are leathery. The flowers are of one sex. They are small and in groups in the axils of leaves or at the ends of branches. The fruit are oblong and 3-4 cm long by 1-2 cm wide. They are yellow tinged with red.
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