The effects of several amplification conditions on RAPD amplification for Alsophila spinulosa Information dimension fractal properties of the spatial pattern of Alsophila spinulosa population in Mopan‘‘‘‘gou,Fuling Population structure and its dynamics of rare and endangered plant Alsophila spinulosa Evolutionary donservatism of floristic characteristics of relict Alsophila spinulosa community Niche Characteristics of Dominant Plant Populations of Alsophila spinulosa Community of Danxia Landform in North Guizhou Chemical constituents in stems of Zhuang Medicine Alsophila spinulosa Studies on Species Diversity of Alsophila spinulosa Community in the Bijia Mountain of Yongding, Fujian The soil respiration of Alsophila spinulosa ecosystems BIOMASS AND PRODUCTIVITY OF A TREE FERN ECOSYSTEM IN CHINA Gametophyte Development of Three Species in Cyatheaceae Community Characteristics and Species Diversity of Alsophila spinulosa in Chishui Alsophila National Nature Reserve Study on Interspeciffic Association of Main Shrub Populations in Alsophila spinulosa Community in Yongding County, Fujian Study on the Individual Ecological Field Gradient of the Endangered Plant Alsophila spinulos The Study on Ecological Field of Endangered Plant Alsophila spinulos Individual A STUDY ON THE BIOLOGICAL CHARACTERISTICS AND THE ENDANGERING FACTORS OF ALSOPHILA SPINULOSA A preliminary study on the Alsophilia Spinulosa comm. in guizhou propince Chemical Constituents in the Leaves of Alsophila spinulosa Population Structure and Regeneration of the Endangered Tree Fern Alsophila spinulosa in Huagaoxi National Nature Reserve, Southwestern China