【摘要】 华东分布的中国种子植物特有属共有67属,含98种,隶属于39科,其中有11属为华东特有属.在67属中,单种属39个,少种属14个,多种属14个.特有属的特征概括为:单种特有属的比例大,具有相对原始性或古老性、珍稀濒危性,生活型和分布型的多样性以及具有明显温带性质.华东的中国种子植物特有属主要集中分布于皖南、浙西北、赣西北和福建的北部地区,特别是浙江的西天目山与安徽的黄山是华东各省中国特有属分布中心.华东各省中国种子植物特有属分布多度序列为:浙江>江西>福建>安徽>江苏>台湾.本区与华中和西南的关系最密切,其次是与华南和西北,而与华北和东北几乎很少有联系.更多还原

【Abstract】 This paper deals with the study on Chinese endemic genera of seed plants distributed in the region of East China.The results were summarized as follows:(1)There are 67 endemic genera(including 11 endemic genera of East China)of seed plants in East China.Among them 39 genera are monotypic,14 genera are oligotypic and 14 genera are polytypic.(2)The characteristics of the Chinese endemic genera of seed plants in East China can be concluded as that :it has a large proportion of monotypic,life form and arealtypes of diversity,evident nature temperate,and is ancient in origin,obviously rare and endangered.(3)Comparied with the abundance of the Chinese endemic genera of each provinces in East China,the order of distribution is Zhejiang(52 genera)>Jiangxi(51 genera)>Fujian(37 genera)>Anhui(34 genera)>Jiangsu(25 genera)>Taiwan(11 genera).(4)Based on the statistics of common genera of the Chinese endemic genera of seed plants between E.China and adjacent regions in China,this region has shows the closer relationship to that of C.China(50 genera)and SW.China(45 genera)than to that of S.China(35 genera)and NW.China(25 genera)and minimum with N.China and NE.China.更多还原