Additional file 9: Figure S4. of Evolution of East Asia’s Arcto-Tertiary relict Euptelea (Eupteleaceae) shaped by Late Neogene vicariance and Quaternary climate change

Box-plots of 19 BIOCLIM variables and results of t-tests for 26 populations of E. pleiosperma in China and 10 populations of E. polyandra in Japan. Each box plot shows the maximum, 75th percentile, 25th percentile, and minimum value around the median value for each species. (PDF 443 kb)