Abstract:After a brief account on the study of plant architecture,this paper,taking Fagus sylvatica L. as an example,illustrates the method,steps and significance for analyses of plant architecture and morphological diversity. Fagus sylvatica L.belong to the Troll architectural model.The difference in morphology,anatomy,physiology and genetic diversity among different species and among the populations of a species in different ecological conditions were significant for Fagus sylvatica L.Although the morph...