Analysis on characteristics of Pan’an seed plants flora in Zhejiang Province

There are 1 298 species of wild seed plants,belonging to 627 genera and 144 families in Pan’an area. Among the areal-types of the genera,67 of them are cosmopolitan genera(10.69%),227 ones are tropical distribution(36.20%),321 ones are temperate distribution (51.20%),12 ones are endemic to China distribution (1.91%). The climate in Pan’an is warm and moist,the plant variety is rich,one-genera family and fewer genera family are abundant;there are ancient,relict,rare and nearly exterminate plants which the dominant families and genera are prominent;the types of distribution are various and geographical composition are complex,temperate and tropical parts are dominant,they are in wide connection with the flora of world.