Collection information and vegetation types in which the 9 Quercus species investigated in this study occur.

Data is compiled from [27], [28], [29]. Species names in bold are subgenus Cyclobalanopsis, the remaining species are subgenus Quercus: Q. fabri is from section Quercus, Q. franchetii and Q. variabilis are from section Cerris. HSEBLF = humid subtropical evergreen broad-leaf forests; SSEBLF = semi-humid subtropical evergreen broad-leaf forests. MAP = mean annual precipitation.†stored at 15°C prior to experimentation;#stored at 5°C prior to experimentation;‡from CGIAR-CSI GeoPortal [30]: the aridity index is the ratio of annual precipitation to annual potential evapo-transpiration. Consequently, the smaller the number the more arid the environment.