Analysis on Relationship between Geographic Distribution of Malania oleifera and Hydro-thermal Factors Effects of Shrub-grass on Direct Seeding of Cyclobalanopsis glauca and Malania oleifera in Rocky Desertification Mountains in Southwest Guangxi THE SYNTHESIS OF DI-MUSCONE FR0M CIS-TETRACOS-15-EN0IC ACID OF THE KERNELS OIL MALANIA OLEIFERA CHUN ET LEE The Karyotype of Malania oleifera