Studies on Floristic of the Rare & Endangered Plants and Conservative Plants in Fujian

In this paper,field working,literature and data consulting,floristic analysis method have been used to make research on the rare endangered plants and conservative plants in Fuiian.The conclusions may be drawn as follows:(1) There are 91 species which belong to 40 families and 67 genera,accounting for 14.43% of total rare and endangered plants and 15.45% of national conservative plants respectively in China.(2) The en-demic family such as Bretschneideraceae and Ginkgoaceae,and Alsophila spinulosa,Cibotium barometz,Pseu-dolarix amabilis,Glyptostrobus pensilis,Pseu-dotaxus chienii,Liriodendron chinense,Parakmeria lotungensis,Tsoongiodendron odorum,Semiliquidambar cathayeasis,etc are found in Fujian.The age-old,relict,endemic compositions indicate the age-old origin of flora.(3)Through geographical distribution analysis of families and genera types,it is known that there are 54.44% families and 56.72% genera pertaining to tropical distribution.The results show that the flora is featured with notable tropical and subtropical character.(4) There are 43.29% genera belonging to monotypic genus and fewness type genus,with 15 endemic genera among them.There are 51 endemic species,accounting for 56.04% of corresponding species of Fujian.All of those manifest that there are much monotypic genus and fewness type genus and remarkable endemic compositions in the flora.(5)Through an-alyzing distribution type of family,genus and species(especially endemic species)and coefficient of similarity,it is revealed that geographical compositions is diversiform and that there is a close relationship between the rare endangered and conservative flora of Fujian and those of Southwestern China,Central China,East China,South China.