Comparative study on bryophytes of Carlin gold mineand non-gold field area in Nipu, Guizhou Preliminary Studies on Flora of Hepaticae of Qinling Mountain A quantitative analysis of flora similarity of mountain bryophytes in Xinjiang AN ANALYSIS OF FLORISTIC INTERRELATIONSHIP OF AQUATIC PLANTS BETWEEN NORTHEAST CHINA AND SOME RELATIONAL REGIONS Comparative Floristic Composition Study of Coastal Hilly Areas in Southern and Northern Hainan Island Quantitative relationships between surface pollen and spores assemblages and vegetation in the Southern Subtropics of Yunnan Province, China