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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

Desmanthus 草合歡屬

作者

HUANG, TSENG-CHIEN and OHASHI, HIROYOSHI

型態特徵

Herbs or shrubs, unarmed. Leaves bipinnate; leaflets many, small, narrow, with a sessile gland between the lowest pair; stipules bristly, persistent. Flowers white or creamy yellow, small, in axillary heads on long, upright peduncles, all perfect or the lowest sterile, apetalous, with short staminodes; calyx campanulate, 5-toothed; petals 5, free or somewhat jointed; stamens 10 or 5, free, exserted, about twice as long as the petals; anthers apically eglandular; ovary subsessile, many ovuled; style thick; stigma terminal. Pods brown, linear or curved, membranous to leathery, continuous or subseptate between lengthwise-place, ovate, flattened seeds.

參考文獻

標本列表

學名 中名 標本數