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• 研究论文 •    

杜鹃属(Rhododendron L.)的地理分布及其起源问题的探讨

闵天禄,方瑞征   

  1. 中国科学院昆明植物研究所
  • 出版日期:1979-04-25 发布日期:1979-04-25

ON THE ORIGIN AND GEOGRAPHIC DISTRIBUTION OF GENUS RHODODENDRON L.

Ming Tien-lu Fang Rhui-cheng   

  1. Kunmming Institute of Botany,Academia sinica
  • Online:1979-04-25 Published:1979-04-25

摘要: 杜鹃是人们所熟知的高山花卉,以它丰富的种类、独特的景观、优美的姿态和艳丽的花朵吸引着不少分类学家、生态学家和园艺学家对它们进行了广泛的研究和引种。我们在编写西藏植物志和云南植物志的基础上,试图就该属植物的地理分布及其起源问题进行初步的探讨。

关键词: 杜鹃属, 起源, 地理分布

Abstract: The genus Rhododendron possesses about 850 species ,so it is one of the important componenet of the flora of the North Temperate Zone.In recent era, its center of the distribution lies in Western Szechuan,Northwestern Yunnan,Southeastern Tibet,and though Upper Burma to Eastern Himalaya westwards.In this regions,it possesses not only abundant species and various groups (i.e.Sections and Subsections),but alse the most primitive groups.Basing on these facts,a conclusion could be obtained that the Szechuan-Yunnan Old-land with its adequate surroundings during the geological period ,may be the cradle of the genus.The disjunctive distribution at present of the genus Rhododendron in Europe,Asia and North America probably indicates the close relationship to its center of distribution.

Key words: Rhododendron L.