Trees. Young branches hollow. Leaves decussate, entire, obscurely serrulate, or rarely serrate, densely or sparsely pubescent with stellate-hairs rarely mixed with simple ones, or simple hairs only, sometimes glabrescent or subglabrous. Stipules with not overlapping margins, minutely stellate-hairy outside. Flowers fascicled or on branched glomerules, 2-8 together, rarely solitary, with minute bracteoles. Calyx (incl. ovary) tubular, lobes (3-)4-5(-6), lower part of the tube inside always hairy. Petals densely puberulous outside, inserted on the margin of the calyx tube; apex denticulate to fringed in various degree. Stamens twice as many as petals, inflexed, inserted on the margin of calyx tube, subulate or deltoid, connate at the base or free, 1-rarely 2-seriate, unequal, 5 long, 5 short (except in P. pustulatus); anthers suborbicular. Ovary inferior, 9-10(-12)-celled, each cell with 8-25 fasciculate ovules; style columnar, usually pilose; stigma discoid or capitate, obscurely 8-10-lobed. Fruit a subglobose, few-to many-seeded berry, 1 to several in each axil. Seeds oblong or ellipsoid, black; endosperm fleshy; embryo linear, axile.
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Trees. Branchlets hollow. Stipules stellate. Leaves opposite; leaf blade margin entire or minutely dentate. Flowers fascicled or in branched glomerules, bracteolate. Calyx lobes (3 or)4 or 5(or 6). Petals as many as calyx lobes, outside densely puberulous, apically dentate. Stamens attached to mouth of calyx tube, twice as many as petals, inflexed, unequal in length; anthers subglobose, 4-loculed, longitudinally dehiscent. Ovary inferior, 5-10-loculed; ovules 8-25; style puberulous; stigma platelike or capitate, inconspicuously lobed. Fruit berries, subglobose. Seeds numerous, germinating after leaving tree; endosperm present; embryo filiform.
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