江西铜钹山自然保护区种子植物区系初步研究

A Preliminary Study on the Flora of Seed Plants of Vegetation in Tongboshan Nature Reserve of Jiangxi Province

对江西铜钹山自然保护区种子植物的组成、分布区类型和区系特征进行统计分析,结果表明:分布区的种子植物共计156科610属1 328种,其中裸子植物5科10属13种,被子植物151科600属1 315种。含20种以上的科共16科,单、寡种属共554属,其区系地理成分复杂,在植物区系组成中具有重要作用。在科的分布区类型中,泛热带分布科居多,共68科;其次是世界分布科,共29科。在属和种的分布区类型中,都是泛热带分布最多,北温带分布次之,说明该区的植物区系有明显的过渡性质。

The composition, areal-types and floristic characteristics of seed plants in Tongboshan Nature Reserve were statistically analysed. The results showed that there were 1 328 species of seed plants belonging to 610 genera in 156 families. Among them,there were 13 species of Gymnospermae belonging to 10 genera of 5 families,1 315 species of Angiospermae belonging to 600 genera of 151 families. There were 16 families which consist of more than 20 species, and 554 genera were monotypic or oligotypic genera. The geographical floristical components in Tongboshan Nature Reserve were very complex and these species play important roles in seed plant flora. On the distribution type of families, Pantropic type was the dominant（68 families） ,followed by Cosmopolitan type （29 families） ;on the distribution types of genera and species, Pantropic distribution type was the dominant followed by North Temperate distribution type ,which obviously showed the characteristics of transitionality of the flora.