作者

LI, HUI-LIN and LO, HANN-CHUNG

型態特徵

Trees or shrubs, rarely scandent, mostly inermous, without milky latex. Leaves spirally arranged or distichous, rarely opposite, simple, petioled; blade often with base asymmetric; stipules usually small, rarely large, or absent. Flowers terminal, axillary or on old wood, solitary or in clusters or racemes, subtended by bracts, actinomorphic, bi- or unisexual and dioecious; sepals 3–6, rarely more, free or connate, imbricate or valvate, mostly persistent; petals 3–8, rarely more, or absent, imbricate or valvate; receptacle might deepen in the center, mostly with appendages as disk lobes, fine threads, petal-scales or staminodes; disk present or not, entire, lobed or dissolved into glands; stamens 5 to numerous, hypogynous, mostly free, or monadelphous; anther cells 2, longitudinally dehiscent; ovary mostly superior, rarely semi-inferior or inferior, 1-celled (except Flacourtia) with 2–10 parietal placentas, sometimes incompletely 2–10 celled by deeply penetrating placentas, each with 2 to numerous ovules; styles 1–10, free or connate; stigma sessile. Fleshy or dry berry, drup or loculicidally dehiscent capsule. Seeds 1 to many, sometimes arillate; endosperm copious; embryo axile; cotyledons mostly broad, foliaceous.

屬

Mostly tropics, 84 genera, ca 1,300 species. 6 genera with 6 species in Taiwan.

參考文獻

作者

YANG, KUOH-CHENG and HUANG, TSENG-CHIENG

型態特徵

Dioecious shrubs to trees. Leaves deciduous, simple, usually alternate, with deciduous stipules. Aments ascending or pendulous, developing before or with the leaves in early spring, solitary. Flowers simple, lacking a perianth, each subtended by a bract. Gland as protuberant nectary or cup-shaped disc. Stamens 2-30, free or connate. Ovary superior, bicarpellate, unilocular, stipitate or sessile; style present or absent; stigmas 2, entire or bifid, placentae parietal or basal. Capsules bivalvate. Seeds small; endosperm absent; embryo straight.

參考文獻