Cloning and Expression Analysis of Drought-tolerance Related Gene Gp-LEA in Grimmia pilifera The Method Study of Extracting Total RNA from Grimmia pilifera P.Beauv Comparison of the Geographical Distribution of Racomitrium and Grimmia in China Using ArcGis and MaxEnt Software Cloning and Expression Analysis of GpSOD in Grimmia pilifera Anatomical Structure of Stems and Leaves of Grimmiaceae (Continue) Construction of cDNA Library in Grimmia pilifera Under Drought Stress Extraction of totle RNA from dry Grimmia pilifera THE STUDY OF ANATOMICAL STRUCTURE OF STEMS AND LEAVES IN FIVE GRIMMIACEACMOSSES Jaffueliobryum wrightii var.rhombicum (Grimmiaceae),A New Variety from Inner Mongolia,China Photochemical analysis of PSII in response to dehydration and rehydration in moss Grimmia pilifer P.Beauv COSCINODON (MUSCI, GRIMMIACEAE) NEW TO CHINA Cloning and Expression Analysis of GpUCH Gene in Grimmia pilifera