STUDIES ON THE INTRODUCTION AND CHEMICAL CONSTITUENTS OF ESSENTIAL OIL OF CINNAMOMUM BURMANNII F. HEYNEANUM Morphological characteristics and biomass allocation of Cinnamomum burmannii seedlings on the karst hills of Yangshuo County, Guangxi PHOTOSYNTHESIS AND NITROGEN UTILIZATION IN LEAVES OF CINNAMOMUM BURMANNI GROWN UNDER ELEVATED ATMOSPHERIC NH3 CONCENTRATIONS AND SUPPLIED WITH DIFFERENT FORMS OF SOIL N Numerical classification and species diversity of Cinnamomum burmannii community in karst hills of Guilin Structure of Cinnamomum burmannii Population in Karst hills of Guilin A Study on Infraspecific Types of Chemical Character of Cinnamomum burmannii Studies on Mei Pian Tree (Cinnamomum burmannii Physiological Type) as a New Resource of Natural d-Borneol