The current problems being studied by different authors of the evolution of angiosperms are reviewed in general. An analysis of the arguments on principles and methodology of the system of plant classification have been made.  We support the views put forward by the phylogenetic school and hold that phylogeny should be taken as the guiding principles upon which the classificational system of angiosperms should be built and as the ultimate aim of taxonomy. We disagree with the views of the phenetic school.  The course of evolution is a unity of the process of the origin and the development in its history and the process of dispersal of angiopserms on earth.  The contradiction of variability and heredity is the driving force in the evolu- tion of angiopserms, nay, of all organisms. In the methodology we suggest that comparative analysis should ge hand in hand with the experimental synthesis.  In essence, the classification based on overall simi- larities or most numbers of attributes to determine the relationships between various groups of angi osperms is the deductive inference of formal logic. For the elucidation of the laws of the origin and development of angiosperms the method of analysis and synthesis of the dialectical logic should be adopted. The progress of studies achieved in the origin and  angiopserms of particularly monocotyledons has been summarized, and the common points and discrepancies of the authors have also been pointed out. The tendency of further development in the stud- ies of the origin of angiosperms has been estimated.  All  branches  of botany  have acumulated a large amount of data.  Since 1960 some significant works have been done, especially on the origin and early evolution of angiosperms, which has been being the central problem of more intensive study challenging all botanist of different dis- ciplines today. The review is concluded with a proposal that in order to do further research on the origin and early evolution of angiopserms, all branches of botany must cooperate, and main attention should be paid to the important groups which may play a key rolein the development of plant life on earth.

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Meto situated in the southeastern Tibet, about  30°N' Lat., enjoys a tropical climate.  Below 2500m. altitude, there are monsoon rain forests and broad-leaved evergreen forests, from which the Tibetan scientific expedition has gathered 71 speci- mens of epiphyllous liverworts representing 26 species and 2 varieties in 13 genera. This may be considered as a distinct subzone for the epiphyllous liverworts in the south part of the Tibetan East H

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