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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

Zornia 丁葵草屬

作者

HUANG, TSENG-CHIEN and OHASHI, HIROYOSHI

型態特徵

Annual or perennial herbs, with mostly prostrate, or semi-erect, slender stems. Leaves palmately compound, with 2 leaflets, often glandular-punctate. Flowers commonly yellow, in axillary lax racemes; calyx minute, the upper teeth short, connate, the lowest shorter than the two middle ones; corolla much exserted, the standard broad, the keel incurved, acute; stamens monadelphous, the anthers dimorphous. Pods flattened, indehiscent, with several small round joints.

參考文獻

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