Shrubs or trees, rarely with thorns, and with contact dermatitis-causing exudate. Leaves alternate, imparipinnate (rarely paripinnate or simple), petiolate; rhachis often winged; leaflets sessile to subsessile. Flowers in terminal and/or axillary, spike-like pseudoracemes, panicles, or leiothyrses; dioecious. Male flowers: calyx (4-)5-partite; petals (4-)5-partite; disk 8-10-lobed, cup-shaped; pistillode present; stamens (8-)10, in two whorls of different lengths. Female flowers: perianth similar to male; disk 8-10-lobed, disc-shaped; staminodes present; carpels 3; styles (1-)3; stigmas 3, capitate. Drupe small, spherical; exocarp purple to red, thin at maturity, separating from mesocarp; mesocarp resinous, fleshy, adhering to bony endocarp; 1-locular. [Description contributed by Dr Susan Pell] Derivation of name: Greek for the mastic-tree, Pistacia lentiscus, which this genus resembles in its resinous juice. Worldwide: 30 or more species in South America. Cultivated throughout the warm regions of the world. Zimbabwe: 2 cultivated taxa. |
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