1. Center for Tree Science; The Morton Arboretum; Lisle IL 60532 USA
2. UMR INRA-UHP ‘Forest Ecology and Ecophysiology’; F 54280 Champenoux France
3. Shanghai Chenshan Plant Science Research Center; Chinese Academy of Sciences/Shanghai Chenshan Botanical Garden; 3888 Chenhua rd 201602 Shanghai China
4. INRA; UMR1202; BIOGECO; F-33610 Cestas France
5. Biodiversity Genes & Communities; BIOGECO Research Unit; INRA; 69, route d'Arcachon 33610 Cestas France
6. Galvin Life Science Center; University of Notre Dame; Notre Dame IN 46556 USA
7. Department of Ecology & Evolutionary Biology; University of California; Los Angeles CA 90095 USA