安徽珍稀濒危植物区系探讨

在深入调查的基础上,对安徽珍稀濒危植物区系组成和地理成分进行了详细的统计分析,探讨了该区系的组成特点及地理分布特征。结果表明,该区系属温带亚热带性植物区系,具有珍稀濒危物种丰富,古老、孑遗植物众多;地理成分复杂,区系联系广泛;过渡性质明显,温带亚热带成分占优;特有现象显著,华东区系特征典型等基本特征。在植物区系亲缘上,该区系隶属东亚植物区、中国-日本森林植物亚区、华东地区,与华中植物区系关系密切,受西南植物区系影响深刻。

FLORISTIC ANALYSIS OF THE RARE AND ENDANGERED PLANTS IN ANHUI PROVINCE

Based on deepgoing investigation and detailed floristic statistics, the floristic composition and the geographical distributed features of the rare and endangered plants in Anhui province are analysed in the present paper. The results are shown that this flora belongs to temperate subtropic flora, the floristic features of this flora can be summarized as follows: The floristic composition is rich, with lots of monotypic or oligotypic families and genera and with abundant archic, relic species; The geographical elements are complicated and the floristic connections with the other flora of the world are wide; The temperate subtropic elements are dominant, with obvious floristic transitions from subtropic flora to temperate flora; The endemicity to Chinese flora is conspicious, with typical floristic features of E. China's flora. On floristic phytogeographyical affinity, this flora is subordinate to E. Asiatic Kingdom, Sino-Japanese Forest Subkingdom, E. China Region, it has close relationships with C. China's flora and has profoundly been influenced by Sw. China's flora.