特徵描述
作者
KAO, MUH-TSUE
型態特徵
Herbs, shrubs or small trees. Leaves alternate or opposite, usually without stipules; blade simple or compound. Inflorescences basically cymose, sometimes racemose to paniculate. Flowers bisexual or polygamo-dioecious, regular, hypogynous or perigynous; sepals or calyx-lobes 4–5, free or united, imbricate or valvate; petals 4–5, rarely 0, imbricate or valvate; stamens inserted with the petals, equalling or doubling their number; staminodes or glands sometimes present between the stamens and ovary; carpels 2–5, wholly or partly connate, rarely separate; styles as many as the carpels, distinct or connate nearly to the summit, the stigmas capitate or lateral and subcapitate, ovules numerous, erect or pendulous. Fruit a capsule or berry; seeds numerous, small, winged, albuminous; embryo small, the cotyledons flat.
屬
About 80 genera and 1,200 species, widely distributed, chiefly in the cold and temperate regions; 13 genera, 23 species and two varieties in Taiwan.
參考文獻
Itea 鼠刺屬
作者
KAO, MUH-TSUE
型態特徵
Evergreen or deciduous small trees or shrubs. Leaves alternate, petiolate, glabrous, glandular-dentate or crenate, estipulate. Inflorescence a terminal or axillary raceme or panicle. Flowers white, small; calyx-tube adnate to the base of the ovary, with 5 persistent lobes; petals 5, perigynous, oblong, valvate in bud; stamens 5, perigynous, with filiform-subulate filaments; ovary 2-celled; styles short, the stigma capitate; ovules few to numerous. Capsule oblong to conical, crowned with the persistent calyx-teeth, few to many-seeded; seeds elongate, the testa loose or less produced at both ends.
