Effects of land use type on spatiotemporal distribution of soil nutrients in Dianchi watershed, Yunnan Province of Southwest China. A New Species of Bambusoideae from Yunnan Genetic structure and phylogeography of a relict tree fern, Sphaeropteris brunoniana (Cyatheaceae) from China and Laos inferred from cpDNA sequence variations: Implications for conservation The first fossil Microsoroid fern (Palaeosorum ellipticum gen. et sp. nov.) from the middle Miocene of Yunnan, SW China Conifer Woods of the Pliocene Age from Yunnan, China STUDIES ON INTERSPECIFIC ASSOCIATION OF BOTH Castanopsis orthacantha AND Castanopsis delavayi COMMUNITIES AT JIZU MOUNTAIN,YUNNAN PROVINCE