Chromosome Numbers of Two Threatened Species of Betulaceae New Taxa from Hunan Lectotypification of Two Names in Betulaceae Inflorescence and Floral Organ Development in Carpinus cordata Acclimation of Anatomical Structure and Photosynthesis Characteristics in Leaves of Carpinus tientaiensis to Irradiance The Biological Reason for Endangerment of Carpinus putoensis and Measures for Gene Conservation New Taxa from Hunan SPECIES DIVERSITY OF CARPINUS PUBESCENS COMMUNITY AND ITS JACKKNIFE ESTIMATION Sequences of low-copy nuclear gene support the monophyly of Ostrya and paraphyly of Carpinus (Betulaceae) A NEW SPECIES OF GENUS CARPINUS L. FROM SICHUAN Fractal Characteristics of Distribution Pattern of Carpinus pubescens Population Interspecific Segregation in Carpinus cordataCommunities in Lishan Nature Reserve,Shanxi Induction and Culture of Carpinus betulus Callus Physiological and Biochemical Characteristics of Carpinus betulus Seedlings under Drought Stress Morphogenesis of Female Reproductive Organs in Carpinus turczaninowii and Ostryopsis davidiana (Betulaceae) Carpinus insularis (Betulaceae), A New Species from Hong Kong, China