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首页> 美国卫生研究院文献>Plant Diversity >New taxa of Berberis (Berberidaceae) with greenish flowers from a biodiversity hotspot in Sichuan Province China
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New taxa of Berberis (Berberidaceae) with greenish flowers from a biodiversity hotspot in Sichuan Province China

机译：来自中国四川省生物多样性热点的绿色小花小Ber属新科

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摘要

A new species, Berberis viridiflora X. H. Li, and a new variety, Berberis sanguinea Franch. var. viridisepala X. H. Li, L. C. Zhang & W. H. Li are described and illustrated from Baoxing County, a biodiversity hotspot located on the eastern edge of Hengduan Mountains in Sichuan Province, Southwest China. Both new taxa resemble B. sanguinea Franch. var. sanguinea, but B. viridiflora differs by the greenish flowers, and the petals being truncate, obtuse, or undulate at apex; while B. sanguinea var. viridisepala differs by the greenish or yellowish green flowers. Morphological features of the pollen grains of B. sanguinea and the two new taxa are revealed by scanning electron microscope. B. sanguinea var. sanguinea displays obvious similarities with a sympatric congener, Berberis multiovula T. S. Ying in the morphology of flowers, stems and leaves, especially its ovule number varies greatly from 2 to 9, thus, B. multiovula characterized by the 5-ovuled ovary is reduced to a synonymy of B. sanguinea var. sanguinea. On the basis of field surveys and study of herbarium specimens, a total of 16 species and varieties of Berberis are recorded from Baoxing County, and a key is provided. Among the 16 taxa, most phenotypic variations in Chinese Berberis can be displayed, including the habit of plants, most morphological variations of stems, branches and leaves, all types of inflorescences, all color types of flowers, and nearly all types of the shape and color of fruits. Baoxing County and its adjacent Sichuan Giant Panda Sanctuaries possibly constitute an active diversification center of Berberis in eastern Hengduan Mountains of China.
机译：小species属一个新种，李小Ber（Berberis viridiflora X. H. Li），新品种，小Ber属小gui（Beerris sanguinea Franch）。变种viridisepala X. H. Li，L. C. Zhang＆W. H. Li的描述和插图来自宝兴县。宝兴县是中国西南地区四川省横断山脉东缘的生物多样性热点。两个新的分类单元都类似于B.sanguinea Franch。变种几内亚（B.viridiflora）的区别在于绿色的花，花瓣在先端截断，钝或起伏;而B.sanguinea var。 viridisepala的区别在于绿色或淡黄色的绿色花朵。通过扫描电子显微镜揭示了血红双歧杆菌和两个新的类群的花粉粒的形态特征。 B.sanguinea var。几内亚在花，茎和叶的形态上与同胞同源小Ber Berberis multiovula TS Ying表现出明显的相似性，尤其是其胚珠​​数从2到9变化很大，因此，以5子房卵巢为特征的B.multiovula减少为a。 B.sanguinea var。的同义词几内亚。在野外调查和标本室标本研究的基础上，宝兴县共记录了小of的16个品种和变种，并提供了关键。在这16个分类单元中，可以显示中国小B的大多数表型变异，包括植物习性，茎，枝和叶的大多数形态变异，所有花序，所有颜色的花以及几乎所有类型的水果的形状和颜色。宝兴县及其毗邻的四川大熊猫保护区可能构成了中国横断山脉东部的“小is”活跃的多元化中心。

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