The Chinese gymnosperm flora is with abundant diversity,ancient origin,and a lot of relict species,and endemic species,which is significant for revealing the construction of local biodiversity and characteristics.In this paper,taking the gymnosperm floras from Taiwan Mountains,Mount Wuyi,Jing-gang,Wulingyuan,Emei,Eluo,and Namjagabrwa as the research objects,the authors study the compo-sition of gymnosperm geographical elements,discuss the relationship between the floras and climatic,ec-ological factors.Following results were obtained:①In the west China,it is not the floras with abundant gymnosperm species;The east mainland China,the third ladder,has more abundant gymnosperms.②The geographical elements of genus are relative to local ecological factors,such as elevation,rainfall, quantity of heat.③ The endemic genera to China are abundant in the east third ladder.④ In Taiwan, the gymnosperms are with more abundant genera and species;the Abies in Namjagabrwa are more than the other 6 regions.The results from the study are important for indicating the evolution and distribution patterns of gymnosperms.
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