作者

CHEN, CHING-HSIA

型態特徵

Trees or shrubs, often woody climbing, with often appressed medifixed hairs. Leaves simple, mostly opposite, quite entire; glands often present either on petiole or on the lower surface of the leaves; stipules small or absent. Inflorescence axillary or terminal; pedicels articulate, usually 2-bracteolate. Flower hermaphroditic, rarely polygamous, regular or irregular; calyx usually 5-partite, the segments imbricate or very rarely valvate, one or more larger glandular outside, rarely eglandular; petals 5, clawed or not, often fimbriate, imbricate, disc obscure, small; stamens 10, hypogynous or subperigynous, equal or one much more larger than the others, the filaments free or connate at the base, the anthers 2-lobed, opening lengthwise or by a pore-like slit; ovary 3-celled, rarely 2 or 4, the styles 1–3, straight or circinate, the stigmas capitate or punctiform or lateral; ovules solitary in each cell, the micropyle superior, the raphe ventral. Fruiting carpels often winged samaras, or carpels connate into a fleshy or woody drupe. Seed exalbuminous; embryo straight or curved, the radicle superior.

屬

A family of about 65 genera and 1280 species, tropical America, Africa and Asia; four genera in Taiwan. One cultivated.

參考文獻