Flora of Dazhaishan Nature Reserve of Pingyin in Shandong Province

Dazhaishan nature reserve in Pingyin in Shandong province,located in the middle of Shandong Peninsula,its flora is with some characteristics as follows: it is abundant in species,containing 556 species of 325 genera,belonging to 93 families(including 19 mutations,2 forms,1 subspecies).Among them,Pteridophyta contains 15 species of 12 genera,belonging to 10 families(including 1 mutation).Gymnopermae contains 1 species of 1 genera,belonging to 1 families.Angiospermae contains 540 species of 312 genera,belonging to 82 families(including 18 mutations,2 mutation,1 subspecies);predominance is obvious;endemic species are distributed;the distribution is of various types,geographic elements are complex;temperate zone elements have obvious advantages;elements of the pan-tropical are rich;there is a definite relation with tropical flora.