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绣球花科中国溲疏属小花溲疏组的数量分类
引用本文:何平,袁小凤,田丽华,李晓柯.绣球花科中国溲疏属小花溲疏组的数量分类[J].西南师范大学学报(自然科学版),2000,25(4):429-438.
作者姓名:何平  袁小凤  田丽华  李晓柯
作者单位:1. 西南师范大学生命科学学院, 重庆 400715
2. 重庆市农业局, 重庆 40001
基金项目:国家自然科学基金课题"中国溲疏属种间关系及进化"资助(39270058)
摘    要:测定了中国小花溲疏组(Sect.mesodeuntzia Schneid.)内9种及6变种的40个形态特征并进行了数量分类分析,通过聚类分析、主成分分析和特征性状的相关分析,对该组组下等级划分、种的归属及种间亲缘关系作了全面研究,结果表明:(1)小花溲疏组可划分为3个系,即小花溲疏Ser.Parviflorae Zaikonn.)、粉红溲疏系(Ser.Rubentes Zaikonn.)及伞房溲疏

关 键 词:数量分类  小花溲疏组  溲疏属  中国  绣球花科
文章编号:1000-5471(2000)04-0429-010

Numerical taxonomy of Mesodeutzia Schneid. of Deutzia Thunb. in China
HE Ping\ ,YUAN Xiao\|feng\ ,TIAN Li\|hua\ ,LI Xiao\|ke\.Numerical taxonomy of Mesodeutzia Schneid. of Deutzia Thunb. in China[J].Journal of Southwest China Normal University(Natural Science),2000,25(4):429-438.
Authors:HE Ping\  YUAN Xiao\|feng\  TIAN Li\|hua\  LI Xiao\|ke\
Institution:HE Ping\ 1,YUAN Xiao\|feng\ 1,TIAN Li\|hua\ 1,LI Xiao\|ke\ 2
Abstract:Based on morphological characters of nine species and six variations, by using the help of the multivariate techniques, e.g.clustering analysis (CA), principal component analysis (PCA), and character correlation analysis (CCA), we discussed the infrasectional rank and interspecific relationships of Sect. Mesodeutzia in China.We found that: (1) The Sect.Mesodeutzia Schneid.of Deutzia can be divided into three series, i.e., Ser.Parviflorae Zaikonn., Ser. Rubentes Zaikonn.and Ser.Corymbosae Zaikonn. Within the section, Ser.Parveflorae is relatively primitive taxon, and Ser. Corymbosae is the most derived one, while Ser.Rubentes lies in between above two series. (2) According to the contribution ratio of the characters in PCA analysis, it is clear that some characters play very important role in segregation those series and species ,for example, the shape of filament apex, stamen length, the elevation, the seed length and width as well as the trichomes. (3) The character correlation analysis suggested that strong correlation among many characters such as correlation between petiole length and leaf size,correlation among trichomes on different parts and the correlation between the inner and outer stamens. With the rise of elevation, some characters like leaf shape, positioning of ancer and shape of filament apex in Sect.Mesodeutzia present some regular changes.
Keywords:Numerical Taxamony  Sect  Mesodeutzia Schneid    Deutzia  Thunb    China  
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