1. State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
2. University of Chinese Academy of Sciences, Beijing 100049, P. R. China
3. Henan College of Traditional Chinese Medicine, Zhengzhou 450008, P. R. China
4. Key Laboratory
of Plant Resources Conservation and Sustainable Utilization, South
China Botanical Garden, Guangzhou 510650, P. R. China