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Menyanthaceae

睡菜科

特徵描述
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特徵描述

[ Gentianaceae 龍膽科 ]

作者

WANG, Jenn-Che, CHEN, Chih-Hsiung, LU, Chang-Tze and CHEN, Ya-Chi

型態特徵

Herbs, annual, biennial or perennial. Stems ascending, erect or twining. Leaves opposite, less often whorled, simple; stipules absent. Inflorescences simple or complex Cymess, often a thyrse, sometimes 1-flowered. Flowers bisexual, rarely plants polygamous, 4- or 5-merous. Calyx tubular. Corolla tubular, obconic, salverform, campanulate or rotate; lobes contorted, sometimes with extensions of corolla tube (plicae) between corolla lobes. Stamens inserted on corolla tube, alternate with lobes; anthers 2-locular. Nectaries absent or attached to corolla (maculas) or ovary base. Ovaries superior, 1-locular, rarely 2-locular, with parietal placentae. Fruit a 2-valved Capsule, rarely a berry. Seeds many, rarely few, small.

About 80 genera and 700 species, worldwide, mostly in temperate to frigid regions. Five genera and 26 taxa in Taiwan, of which 20 taxa are endemic.

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