The basic characteristics of seed-plant flora in Qinhuangdao

Based on the floristic statistics and analyses, the author revealed the basic nature of Qinhuangdao flora and the main results and conclusions as follows: Qinhuangdao was the rich region in flora with about 1093 specieswild seed plants, belonging to 122 families and 51 genera. It was chiefly temperate in nature and had a certain transitional nature with tropical and subtropical flora. There were few endemic elements: 8 Chinese endemic genera. The geographical connection, source and development of the flora were also discussed.