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Chairman Chen Jin delivered a speech at the gathering of celebrating XTBG’s 50th anniversary.

W. John Kress National,from Museum of Natural History Smithsonian Institution Washington, DC, USA and Xishuangbanna Tropical Botanical Garden The Chinese Academy of Sciences Mengla, Yunnan, China, delievered a speech at the 50th Anniversary of the Xishuangbanna Tropical Botanical Garden.