A PRELIMINARY STUDY ON THE PLANT SPECIES DIVERSITY OF BANQIAO MOUNTAINOUS REGION IN NINGGUO COUNTY,ANHUI PROVINCE

Banqiao Mountainous Region (BMR) belongs to the extention of Mountain Huangshan.In BMR there are 1056 species of vascular plants, belonging to 556 genera and 154 families.Seventeen of these plants are the rare and endangered plants protected by law in China.The density of family, genera and species in BMR are respectively 2.3/km², 8.3/km², 15.7/km², which are very similar to Mt.Huangshan and Mt.Jlulongshan.The flora of BMR shows complex, transitional and ancient characteristics.According to the analysis of chinese endemic genera in BMR, the origin of them is mainly historical reason rather than ecologial reason.Based on tile spedes diversity and other reasons, the author thinks it necessary an(l urgent to establish Banqiao Nature Preserve.