特徵描述
作者
LI, HUI-LIN
型態特徵
Trees or shrubs; juice often milky and acrid. Leaves alternate, very rarely opposite, estipulate, simple or compound. Inflorescence various; flowers small, regular, unisexual, polygamous, or bisexual. Calyx 3–5-partite, sometimes accrescent. Petals 3–5, alternate with the sepals, free, imbricate or valvate. Disc flat, cup-shaped or annular, entire or lobed, rarely obsolete. Stamens as many as the petals, rarely more, inserted under, rarely on the disc, the filaments usually subulate; anthers 2-celled, basifixed or dorsifixed. Ovary superior, very rarely half-inferior, 1- or 2–6-celled, of 5–6 free carpels in Buchanania; ovules solitary in the cells, pendulous from the top or wall or from an ascending basal funicle. Fruit usually a l–5-celled, 1–5-seeded drupe. Seeds exalbuminous; embryo straight or curved; cotyledons plano-convex.
屬
Genera about 60, chiefly tropical.
參考文獻
Rhus 漆樹屬
作者
HSIEH, TSUNG-HSIN
型態特徵
Trees or shrubs, with often an acrid juice. Leaves alternate, simple or 1–3-foliolate or pinnate; leaflets quite entire or serrate. Flowers small, in terminal and axillary panicles, polygamous; calyx small, 4–6-parted, persistent, the segments imbricate; petals 4–6, spreading; stamens 4, 5, 6, or 10, inserted at the base of the disc, free, the filaments subulate, the anthers short, imperfect in the pistillate flowers; ovary sessile, ovoid or globose, 1-celled; styles 3, free or curvate, the stigmas simple or capitate; ovules pendulous from the basal funicle. Drupe small, dry, compressed; stone coriaceous or bony. Seed pendulous from the funicle, the testa membranaceous.
