中山大学学报自然科学版 ›› 2018, Vol. 57 ›› Issue (1): 36-43.

• 论文 • 上一篇    下一篇

中国李属樱亚属Prunus L.subgenus Cerasus (Mill.) A.Gray的数量分类

吴保欢1,黄文鑫1,石文婷1,羊海军2,崔大方1   

  1. 1.华南农业大学林学与风景园林学院,广东 广州 510642;
    2.华南农业大学公共基础课实验教学中心,广东 广州 510642
  • 收稿日期:2017-02-23 出版日期:2018-01-25 发布日期:2018-01-25
  • 通讯作者: 崔大方(1964年生),男;研究方向:系统与进化植物学、植物资源与区系地理学研究;E-mail:cuidf@scau.edu.cn

Numerical taxonomy study on Prunus L.subgenus Cerasus (Mill.) A.Gray in China

WU Baohuan1, HUANG Wenxin1, SHI Wenting1, YANG Haijun2, CUI Dafang1   

  1. 1.College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China;
    2.Center of Experimental Teaching for Common Basic Courses, South China Agricultural University, Guangzhou 510642, China
  • Received:2017-02-23 Online:2018-01-25 Published:2018-01-25

摘要:

李属Prunus L.樱亚属subgenus Cerasus (Mill.) A.Gray植物目前在亚属下的分类及种的处理上存在争议。本文对41种樱亚属植物的30个形态性状进行聚类分析,对亚属的分类及种的处理进行了讨论。结果显示,在欧氏距离676处,41个种被划分为11个类群,其中6个类群只含有1个种,5个类群包含2个及以上种。华中樱桃Prunus conradinae Koehne、光叶樱桃Prunus glabra (Pamp.) Koehne、蒙自樱桃Prunus henryi (C.K.Schneid.) Koehne、西南樱桃Prunus duclouxii Koehne、云南樱桃Prunus yunnanensis Franch.、樱桃Prunus pseudocerasus Lindl和细花樱桃Prunus pusilliflora Cardot 7个分类存在较大争议的种聚为1支,表明它们之间关系相近,将它们放在一个组或系较为合适。微毛樱桃Prunus clarofolia C.K.Schneid.、多毛樱桃Prunus polytricha Koehne和康定樱桃Prunus tatsienensis Batalin在聚类中非常接近。康定樱桃区别于其他2种的性状是其苞片边缘的腺体是盘状的,但在原始文献和模式标本中并没有此特征,而多毛樱桃的毛被和其他2种是连续的,建议将3者进行合并处理。

关键词: 李属, 樱属, 樱亚属, 数量分类

Abstract:

Prunus L. subgenus Cerasus (Mill.) A.Gray is a controversial group in infra-subgeneric and species classification. Based on 30 morphological characters data, clustering analysis on 41 species was performed to infer the infra-subgeneric and species classification. The result shows that 41 species are divided into 11 groups, 6 of them only contain 1 species, and others include 2 or more species7 species with controversies, Prunus conradinae Koehne, Prunus glabra (Pamp.) Koehne, Prunus henryi (C.K.Schneid.) Koehne, Prunus duclouxii Koehne, Prunus yunnanensis Franch, Prunus pseudocerasus Lindl. and Prunus pusilliflora Cardot are clustered into 1 group, indicating their related relationship; It would be appropriate to put them in one section or series. Prunus clarofolia C.K.Schneid., Prunus polytricha Koehne, Prunus tatsienensis Batalin are in a group with a close distance in clustering analysis. The disciform glands in the margin of bracts are the distinguishing characters of Prunus tatsienensis to other 2 species, but the character was not found in the original literature and type specimen. And the densely villous of the Prunus polytricha is indistinguishable to other 2 species. The 3 species are proposed to be combined to 1 species.

Key words: Prunus, Cerasus, subgenus Cerasus, numerical taxonomy

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