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Leguminosae

豆科

特徵描述
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特徵描述

作者

HUANG, TSENG-CHIEN and OHASHI, HIROYOSHI

型態特徵

Herbs, shrubs, or trees. Leaves stipulate and usually alternate, pinnate or digitately compound, or simple, sometimes with the rachis ending in a tendril. Inflorescence variable, axillary, leaf-opposed or terminal, mostly pseudoracemose or panicled, bracts and bracteoles usually both present; flowers usually irregular, hermaphroditic, rarely regular or polygamous; sepals 4–5, connate or free, often unequal, sometimes combined into 2 lips; petals 5, rarely fewer by reduction, usually free and unequal; stamens normally 10, perigynous or hypogynous, rarely fewer or indefinite; filaments free or variously connate; anthers 2-celled, generally longitudinally dehiscent; ovary free; style simple, cylindrical, usually declinate, stigma capitate, terminal or oblique; ovules one or more on the ventral suture. Fruit usually a dry, dehiscent legume, typically dehiscent by one or both sutures into two valves, or indehiscent, sometimes jointed and separating into 1-seeded joints. Seeds usually exalbuminous; cotyledons foliaceous or amygdaloid, with a straight or inflexed acumbent radicle.

Genera about 650, species over 18,000, cosmopolitan. About 60 genera and 170 species in Taiwan.

參考文獻

Gleditsia 甹莢屬

作者

HUANG, TSENG-CHIEN and OHASHI, HIROYOSHI

型態特徵

Large deciduous trees, the trunk and branches usually armed with large branched spines. Leaves pinnate and bipinnate on the same tree. Flowers in racemes or panicles, polygamous; calyx 3–5-lobed; petals 3–5, nearly equal, not much longer than the calyx lobes; stamens 6–10, distinct; ovary shortly stipitate, many-ovuled, the style short, the stigma large, terminal. Pods compressed, mostly large and indehiscent, 1- to many-seeded.

參考文獻

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