The endangered characteristics and mechanism of the endemic relict shrub Tetraena mongolica Maxim  Plant diversity in a changing world: status, trends, and conservation needs Megasporogenesis,development of female gametophyte of Manglietia insignis(Magnoliaceae) Allozymic Genetic Diversity in Eurycorymbus caraleriei (Levl.)Rehd.et Hand.-Mazz., an Endemic and Dioecious Tree in China Strategies and Challenges in Plant Germplasm Conservation A commentary on plant ex situ conservation and its researches in China nearly thirty years Dynamics and Evaluation of Oryza rufipogon and Ranalisma rostratum Population in exsitu Conservation of Communities EX SITU CONSERVATION OF MAGNOLIACEAE INCLUDING ITS RARE AND ENDANGERED SPECIES Mating system, mating tactics and effe A PRELIMINARY STUDY ON THE DESIGN OF A COMMUNITY FOR EX SITU CONSERVATION OF THE RARE AND ENDANGERED PLANTS IN THE THREE GORGE RESERVOIR AREA Potential Risk of Hybridization in Ex Situ Collections of Two Endangered Species of Sinojackia Hu (Styracaceae)  Plant diversity in a changing world: status, trends, and conservation needs Adaptability Evaluation of Ex Situ Conservation of Thirteen Wild Paphiopedilum Species by Gray-Correlation Analysis Breeding System of the Endangered Species Psilopeganum sinense and Its Pollination Process in a Botanical Garden Natural Distribution and Ex Situ Conservation of Endemic Species Myricaria laxiflora in Water-level-fluctuation Zone within Three-Gorges Reservoir Area of Changjiang River