Journal of Systematics and Evolution
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Xiao-Fang He1,2, Song-Wei Wang3, Hang Sun1*, Christian Körner3*, and Yang Yang1*
1Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China
2University of Chinese Academy of Sciences, Beijing, China
3Institute of Botany, University of Basel, Schönbeinstrasse 6, 4056 Basel, Switzerland