1. Botanischer Garten und Botanisches Museum Berlin, Freie Universität Berlin, Königin-Luise-Str. 6–8, 14195 Berlin, Germany;, Email: n.tand@bgbm.org
2. United States Department of Agriculture/Agricultural Research Service, National Germplasm Resources Laboratory, Bldg. 003, Beltsville Agricultural Research Center (BARC-West), Beltsville, Maryland 20705-2350, U.S.A.
3. Australian National Herbarium, Centre for Australian National Biodiversity Research, GPO Box 1700, Canberra ACT 2601, Australia
4. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, P.R. China
5. Shenzhen Key Laboratory of Southern Subtropical Plant Diversity, Fairy Lake Botanical Garden, Shenzhen 518004, Guangdong, P.R. China