Seed Plant Flora of Liangyeshan National Nature Reserve in Fujian Province

Based on field investigation,specimen collection and relevant literature data,we compiled a list of wild seed plants of Liangyeshan Nature Reserve in Fujian province,and analyzed the composition of seed plant flora and its geographical distribution types of families and genera,and the results were compared to two neighboring nature reserves.The results showed that:(1)There were totally 1 498 natural seed plant species belonging to 662 genera and 154 families in Lingyeshan Nature Reserve,which was abundant in plant species.(2)Tropical elements were the dominant components of the flora,but a large number of temperate elements reflecting subtropical flora characteristics.At family level,85 families belonged to tropical elements and accounted for 69.67% of the total families.At genus level,371 genera belonged to tropical el-ements and accounted for 60.82%of the total genera.(3)Compare to two neighboring nature reserves,R/T(number of tropical elements/number of temperate elememts)ratio of genus in the region(1.66)was higher than that in the Wuyishan Nature Reserve(1.10),but lower than that in the southern subtropical rainforest in Nanjing(2.68).Floristic similarity coefficients between this region and the two neighboring nature reserves were very close.Liangyeshan Nature Reserve not only shared common temperate floristic components with Wuyishan Nature Reserve which were not found in subtropical rainforest in Nanjing,but also shared common tropical floristic components with subtropical rainforest in Nanjing which were not found in Wuyishan Nature Reserve.This indicated that flora in the region was consistent with its geographic position at southern Wuyishan Mountains,and that it was geographically a transitional area from south subtropical to mid-subtropical.