Flora analysis of Orchidaceae in Fujian Province

Based on wild investigating,specimens arranging and document consulting,the floral composition,life-form and distribution type of Orchidaceae in Fujian Province,as well as the flora relationship with neighboring areas,were analyzed.The results indicate that there are 164 species belonging to 67 genera and 2 subfamilies of Orchidaceae in Fujian Province,in which,the percentage of genera with single species and few species is the largest with an accounting for 88.06% of total genus number,and there are 35 species of Chinese endemic species with an accounting for 21.34% of total species number,showing the Orchidaceae flora is young derivative flora.The life-forms of Orchidaceae in Fujian are mainly edaphic type,97 species belong to edaphic type,59 species and 9 species belong to epiphytic and saprophytic types,respectively.The floral compositions of Orchidaceae in Fujian are complex and varied,and include eleven distribution types.The genus number belonging to Tropical Asia is the most with an accounting for 37.31% of total genus number,and the percentage of genera and species belonging to tropical composition are 73.12% and 73.78%,respectively,it means that the flora of Orchidaceae in Fujian has a tropical character.Respectively,the common species of Orchidaceae in Fujian with Guangdong,Guangxi,Yunnan and Taiwan are 94,92,93 and 80 species,and the common species with Jiangxi,Zhejiang,Hu'nan,Anhui and Hubei are also above 39 species,it is suggested that the flora of Orchidaceae in Fujian has an obvious character of the flora of South China and has a certain relationship with the floras of East China and Central China.The above-mentioned research results may be the basis for protection and utilization of Orchidaceae resources in Fujian Province.