关键词: 壳斗科, 栎属, 起源, 演化, 分布, 区系

Abstract: Origin, phylogeny and dispersal of Quercus from China were discussed based on studies of phylogeny, fossil history and modern distribution of Quercus. According to Takhtajan's view point of regionlizatiton of the world flora, a number of species in every re-gion of the world were counted as follows: Caribbean region with 134 species belonging to one subgenus and three sectitons (3/ 1), Indo-Chinese region 118(3/2) and east Asian region 97(3 / 2). Above regions are abundant in a number of species and can be considered as the cen-tres of majority. In conjunction with considering their phylogenetic relationships and fossil his-tory Indo-Chinese region would be however the centre of distribution and speciation and could be original place of Quercus. Original time of Quercus was suggested in early Plaeogene based on the fossil history of Quercus. Trigonobalanus has been recognized as probable ancestor of Quercus.

Key words: Fagaceae