Characteristics of geographic distribution of four critically endangered species of Abies in subtropical China and its relationship with climate Study on the Structure and Spatial Pattern of the Endangered Plant Population of Abies yuanbaoshanensis Genetic diversity at chloroplast microsatellites(cpSSR)in Abies fanjingshanensis and A. yuanbaoshanensis THE FRUITING CHARACTERISTICS AND REPRODUCTIVE CAPACITY OFSEEDS OF ABIES YUANBAOSHANENSIS A Study on the Niches of Main Tree Populations in Abies yuanbaoshanensis Community Preliminary study on flora of seed plants of vegeta-tion in Mt.Yuanbaoshan, Guangxi, China Study on chemical constituents of Abies yuanbaoshanensis FRACTAL PROPERTIES OF DISTRIBUTION PATTERNS OF TAXUS CHINENSISVAR. MAIREI CLONAL POPULATIONS IN THE YUANBAOSHAN MOUNTAIN, CHINA Analysis of the Life Table of Endangered Population Abies yuanbaoshanensis Anatomical structure and environmental adaptability of Taxus wallichiana var.mairei in Yuanbaoshan