1. Kunming Botanical Garden; Kunming Institute of Botany; Chinese Academy of Sciences; Kunming Yunnan China
2. University of Chinese Academy of Sciences; Beijing China
3. Landscape Ecology & Plant Production Systems; Interfaculty School of Bioengineering (EIB); Université Libre Bruxelles (ULB); Brussels Belgium
4. Department of Horticulture and Landscape Architecture; Oklahoma State University; Stillwater MN USA