梵净山中国种子植物特有属组成分析  

Species composition of seed plants endemic to China around Mount Fanjing

作　　者：莫忠妹 杨传东 MO Zhongmei;YANG Chuandong(College of Agroforestry Engineering and Planning,Tongren University,Tongren 554300,China;Guizhou Provin cial Key Laboratory for Biodiversity Conservation and Utilization in the Fanjing Mountain Region,Tongren University,Tongren 554300,China)

机构地区：[1]铜仁学院农林工程与规划学院,贵州铜仁554300 [2]铜仁学院贵州省梵净山地区生物多样性保护与利用重点实验室,贵州铜仁554300

出　　处：《贵州科学》2022年第4期24-28,共5页Guizhou Science

基　　金：贵州省梵净山地区生物多样性保护与利用重点实验室项目(黔科合平台人才[2020]2003);铜仁市科技局基础研究计划项目(铜市科研[2021]73号);贵州省普通高等学校青年科技人才成长项目(黔教合KY[2022]066号)共同资助。

摘　　要：梵净山独特的地理环境及气候资源孕育了丰富的生物多样性,以梵净山区内的中国特有种子植物为研究对象,探究分布于该区中国特有种子植物中特有属物种组成特性、生活型及其地理分布特征。结果表明:分布于梵净山的中国特有种子植物特有属共24属,有33种,隶属于24科,科的分布类型中,有7个分布型和3个变型,其中泛热带分布型最多,属的分布类型中,主要为中国特有分布21属,占该区总属数的87.5%,北温带分布型最多,从物种组成上看,苦苣苔科的种数最多,有5种,特有属中单少型属占比较大,有21属,占比达87.5%,大多具有原始性及古老特有残遗属等特点;生活型上以木本(含木质藤本)属数量(16属)占优势,丰富的特有属植物也反映了梵净山种子植物区系的多样性。The unique geographical environment and climatic resources around Mount Fanjing have bred rich biodiversity.The species composition,life form and geographical distribution of seed plants endemic to China around Mount Fanjing are analyzed in this study.There are 24 genera(33 species,24 families)of seed plants endemic to China around Mount Fanjing.At the family level,there are 7 distribution types and 3 variation types,among which the pantropical distribution type is the most.At the genus level,there are 21 genera endemic to China,accounting for 87.5%of the total genera in the region,and the north temperate type is the most.In terms of species composition,Gesneriaceae has the largest number of species(5 species).Among the endemic genera of seed plants,a large proportion are monotypic and oligotypic(21 genera),accounting for 87.5%,and most of them are primitive and ancient unique residual survivor.In the aspect of life form,the woody(including woody vines)genera are dominant(18 genera).The abundance of endemic plants reflects the diversity of the seed plant flora around Mount Fanjing.

关 键 词：梵净山 种子植物 中国特有属 物种组成 区系分析 

分 类 号：Q948.5[生物学—植物学]