Metopium P. Br.
Dioecious trees or shrubs with prominent resin ducts and contact dermatitis-causing exudate turning black with exposure to air. Leaves evergreen, imparipinnate, petiolate; leaflets petiolulate, entire; mature leaflets often speckled with black spots. Inflorescences axillary panicles, lax. Flowers pedicellate, non-articulate; perianth 5-parted, imbricate; calyx fused; corolla yellow-green with dark veins; androecium haplostemonous; anthers basi- or dorsifixed; pistillode reduced; staminodes reduced; disk glabrous, 5-lobed; carpels 3; style short; stigma 3-lobed; ovule pendulous, basal. Drupe ellipsoidal to obovoid, 1-locular; exocarp orange to brown, glabrous. Seed compressed, somewhat quadrangular; funicle expanded, covering one margin; embryo oriented vertically but with a curved radicle.
Three species in West Indies, southern Florida (US), Mexico and northern Central America.
Original Publication: Metopium P. Br., Civ. Nat. Hist. Jamaica: 177 (1756)
Synonyms: Rhus L. (1753), p. p.
Bibliography: F.A. Barkley, Ann. Missouri Bot. Gard. 24: 265–499 (1937), rev.