特徵描述
作者
LI, HUI-LIN
型態特徵
Trees or shrubs, almost always with bitter bark. Leaves alternate, often very large, pinnate or rarely simple; stipules 0 or deciduous. Inflorescence axillary, racemose, paniculate or cymose, rarely spicate. Flowers usually diclinous, regular, and generally small. Calyx 3–5-lobed, valvate or imbricate. Petals 3–5, very rarely 0, hypogynous, valvate or imbricate. Disc annular or elongate, simple or lobed, rarely 0. Stamens as many or twice as many as the petals, rarely indefinite, inserted at the base of the disc; filaments free, often with a scale at the base; anthers oblong, usually introrse, 2-celled, dehiscing longitudinally. Ovary free, 1–6-celled, usually deeply lobed, or entire; styles 2–5, free or more or less united, the stigmas capitate; ovules solitary in each cell, rarely numerous, the raphe ventral, the micropyle superior. Fruit drupaceous, capsular, or occasionally samaroid, usually of 2–6 distinct carpels. Seeds usually solitary, erect or pendulous, albuminous; embryo straight or curved, radicle superior.
屬
About 30 genera and 150 species, in tropical and subtropical regions of both hemispheres; three genera in Taiwan.
參考文獻
Brucea 鴉膽子屬
作者
LI, HUI-LIN
型態特徵
Bitter trees or shrubs. Leaves very large, unequally pinnate. Flowers very small, in very small cymes collected into axillary panicles; calyx minute, 4¬partite, imbricate; petals 4, minute, linear, imbricate; disc 4-lobed; stamens 4, inserted beneath the disc, the filaments naked; ovary deeply 4-lobed, or consisting of 4 entirely free carpels. Drupes 4, entirely free, ovoid, somewhat fleshy. Seeds solitary, exalbuminous.
