Chemical Constituents from the Bark of Cercidiphyllum japonicum POPULATION STRUCTURE AND DYNAMICS OF CERCIDIPHYLLUM JAPONICUM IN RIPARIAN ZONES OF THE SHENNONGJIA MOUNTAINOUS REGION, CENTRAL CHINA Age structure and point pattern analysis of four Cercidiphyllum japonicum populations in three provinces of Hunan, Hubei and Anhui A Preliminary Study on the in Vitro Culture of Cercidiphyllum japonicum Sieb. et Zucc. Genetic Diversity and Genetic Variation of Populations Endangered Tree Cercidiphyllum japonicum Grey correlation and cluster analysis on relationship between Cercidiphyllum japonicum community and its environment Morphogenesis of Pistillate Flowers of Cercidiphyllum japonicum (Cercidiphyllaceae) Research on physiological and biochemical material’s change of Cercidiphyllum japonicum at different altitudes and adaptability Characteristics of seed germination of the rare plant Cercidiphyllum japonicum THE DISTRIBUTION AND CIRCULATION OF NUTRIENT ELEMENT CONTENTS AND ACCUMULATION IN THE YOUNG ARTIFICIAL CERCIDIPHYLLUM JAPONICUM COMMUNITY Influence of Vitrifying Cryopreservation Conditions on Cell Viability and Ultrastructure of Cercidiphyllum japonicum Normal Buds Seed Germination and Seedling Growth of Cercidiphyllum japonicum with PEG Treatment Population Genetic Structure and Variation of Endangered Cercidiphyllum japonicum in Shennongjia Area: The Mountain Barrier to Gene Flow