Study on mechanism of inducing apoptosis in human hepatoma SMMC-7721 cells by DMC, a chalcone from buds of Cleistocalyx operculatus Protective Effects of Cleistocalyx operculatus on Lipid Peroxidation and Trauma of Neuronal Cells THE RELATIONSHIP BETWEEN PHOTOSYNTHETIC CHARACTER AND ADVENTITIOUS ROOTS IN FLOODED CLEISTOCALYX OPERCULATUS SEEDLINGS Preliminary studies on responses of the seedlings of Cleistocalyx operculatus to flooding Studies on the Chemical Constituents from the Bud of Cleistocalyx operculatus