Abstract: There are 2 342 species of vascular plants in mountains in southern Anhui with complex landforms and habitats,which belong to 913 genera and 198 families.The floristic compositions in horizontal zonation become complex from North to South,and the south elements and Pteridophytes increase gradually.Broad-leaf forest is common but in patch,the area of mixed evergreen-deciduous forest appears a gradually declining trend toward the south,whereas the evergreen broadleaf forest does conversely.The vertical zonation of vegetations are obvious,and the vegetations from base belt to top belt are arranged in order as follows:agricultural areas,evergreen broadleaf forest belt,mixed evergreen-deciduous forest belt,deciduous broadleaf forest belt,mountain shrubbery belt or mountain meadow belt,among which the evergreen broadleaf forest belt is dominant,especially during the original vegetations period.The higher the latitude is,the lower the upper limit of the vegetation is distributed.The families of vascular plants of Tropical-subtropical and Tropical-temperate distributional patterns account for 31.8% and 23.6%,respectively,while Temperate distributional patterns make up 50.6%,taking a predominated position,and the genera of Tropical distributional patterns make up 33.6%,among which the percentage of North hemisphere and Pan-tropical floristic elements is 19.6% and 18.6%,respectively.the discrepancy of the statistic data between families and genera and the higher proportion (59.0%) of herbs etc.show that the floristic interims from Subtropical flora to Temperate subtropical one are obvious.There are 65 monotypic genera and 133 oligotypic genera which are genetically relic,ancient,primitive elements.The endemicity to China is outstanding,with 29 endemic genera,25 Angiosperms endemic to Anhui,4 Pteridophytes and 81 Spermatophytes endemic to Anhui,Zhejiang and Jiangxi,while the proportion of endemic genera in this area is lower than that in China,in spite of the abundant Spermatophytes in this area.There are such rich plant resources as for food,medicine,industry and ornamental in this area,but many of which,such as medicinal resources,have decreased rapidly in quantity and distribution.Some protection measures should be enhanced.

Key words: mountains in southern Anhui, habitat, flora, value of utilization