特徵描述
作者
CHANG, CHING-EN
型態特徵
Trees and shrubs, often climbing. Leaves usually alternate, simple, estipulate. Flowers bisexual, rarely unisexual by abortion, actinomorphic, usually in panicles. Calyx 4–5-lobed, small. Petals 4–5, usually distinct or sometimes connate, valvate. Stamens as many as petals and alternate with them, distinct, the anthers 2-celled, usually introrse, sometimes 4-lobed, dehiscing longitudinally. Pistil 1, the ovary superior, 1-loculed, mostly 3- or 5-carpellate, the placentation apical; ovules 2, usually pendulous from locule apex, anatropous; style 1, the stigmas usually 3. Fruit usually a drupe, rarely a samara. Seed with straight or curved embryo; endosperm present.
屬
About 56 genera, of pantropical distribution. Three in Taiwan.
參考文獻
Gonocaryum 瓊欖屬
作者
CHANG, CHING-EN
型態特徵
Dioeceous trees or shrubs. Leaves spiral, petiolate, simple, coriaceous, penninerved. Flowers axillary; staminate ones in globose heads, borne on short spikes; pistillate ones shortly pedicelled; sepals 5, distinct, imbricate; corolla tubular, the limb 5-parted; stamens 5, alternate with the petals, adherent to the tube of the corolla, the anthers ovoid-oblong, dorsifixed, 2-lobed, dehiscing longitudinally; disc fleshy, hypogynous, 5-lobed, the lobes opposite the petals; ovary conical, 1-celled, the style subulate; ovules 2, pendulous. Fruit oblong, with a crustaceous rind. Seeds pendulous; endosperm coriaceous, ruminate; embryo minute.
