A PRELIMINARY APPROACH ON ECOGEOGRAPHIC LAW OF THE WOODY FLORA IN HENAN Floristic analysis of the main evergreen broadleaved forest in Maofengshan, Guangzhou The area and floristic geographic element of Potaninia Community characteristics of Stipa roborowskyi steppe in Xizang Floristic analysis of the evergreen broad-leaved forest community from Jiulianshan National Nature Reserve in Jiangxi Province An analysis of the flora of woody plants in Heilongjiang Province Floristic Features of Sand Vegetation in the Middle Reaches of the Yarlung Zangbo, Xizang (Tibet) Floristic Comparison of Three Regional Tropical Floras in Yunnan, China