作　　者： ; ; ; ; ; ; ;

机构地区： 广州大学生命科学学院

出　　处： 《湖北民族学院学报（自然科学版）》 2010年第4期361-367,417,共8页

摘　　要： 永瓣藤(Monimopetalum chinense)是卫矛科(Celastraceae)的单型属,为中国特有的珍稀濒危植物.采用样方法研究了永瓣藤生存群落的区系多样性,对永瓣藤所在区域的11个群落植物区系调查、采集和鉴定,共有维管植物80科、138属、182种.并进行了科、属、种的分布区类型的统计分析,得出永瓣藤所在区系的性质与特征:①永瓣藤植物群落区系组成多样;②大型科、属较少,中、小型科、属较多;③生态类型多样;④分布区类型多样;⑤泛热带成分和北温带成分占优势,具有北亚热带向暖温带过渡的特性;⑥特有属、种较贫乏. Monimopetalum chinense is a monotypic genus of Celastraceae,endemic rare and endangered plant in China.This paper deals with the floristic diversity by using quadrat method,and through investigation,collection and authentication from eleven communities of M.chinense.There are 182 species of wild vascular plants in this flora,which belong to 80 families and 138 genera.The statistical analysis of the areal types shows the following nature and characteristics：①The floristic compositions of community M.chinense are diverse;②Less large family and genus,more medium and small family and genus;③The ecosystem types are diverse;④The areal types are also very diverse;⑤The compositions of pantropic and north temperate are in dominant position,with the transition character from subtropics to south temperate;⑥Endemic genera and species are scarce in this flora.

关 键 词： 永瓣藤 卫矛科 小尺度区系 分布区类型 区系多样性

领　　域： [生物学]