红豆杉科白豆杉属植物的分类学研究  

Taxonomic study on Pseudotaxus (Taxaceae)

作　　者：王康[1,2,3] 杨永[1] 

机构地区：[1]系统与进化植物学国家重点实验室,中国科学院植物研究所,北京100093 [2]中国科学院研究生院 [3]北京植物园

出　　处：《植物分类学报》2007年第6期862-869,共8页Acta Phytotaxonomica Sinica

基　　金：国家自然科学基金(30600035);中国科学院知识创新工程方向项目(KSCX2-YW-Z-067);科技部"植物标本标准化整理;整合及共享平台建设"(2005DKA21401)~~

摘　　要：白豆杉属Pseudotaxus现包括2种,即白豆杉P.chienii(Cheng)Cheng和李氏白豆杉P.lianaJ.Silba,二者之间的区别在于叶片宽度不同。本文对来自浙江、江西、湖南和广西等地的白豆杉属植物标本进行了观察和测量。尽管t检验分析表明来自浙江的标本与来自江西、湖南和广西的标本在叶片宽度平均数上的确存在显著差异,但是,散点图分析却显示叶片宽度变异是连续的,这与J.Silba的观察不同,因此,将P.lianaJ.Silba作为P.chienii(Cheng)Cheng的异名处理。Two specific names, viz. Pseudotaxus chienii （Cheng） Cheng and P. liana J. Silba, were published within Pseudotaxus and leaf width was considered to be discontinuous between the two species. Width of leaf blades of herbarium specimen was measured and analyzed statistically with student＇s t test and XY PLOT. Though a significant difference of leaf width was indicated between specimens from Zhejiang and those from Jiangxi, Hunan and Guangxi, XY PLOT suggests that the difference on the variation of leaf width, suggested by J. Silba, is continuous. As a result, Pseudotaxus liana J. Silba was reduced to synonymy of P. chienii （Cheng） Cheng.

关 键 词：白豆杉属 红豆杉科 分类 

分 类 号：Q949[生物学—植物学]