David Boufford,^1,* Jiahui Chen,² Kazumi Fujikawa,³ Zaiwei Ge,² Yu Jia,⁴ Susan L. Kelley,¹ Richard H. Ree,⁵ Hang Sun,² Jipei Yue,² Dacai Zhang,⁶ Jianwen Zhang,² Yonghong Zhang<sup>7

1</sup>Harvard University Herbaria, 22 Divinity Avenue, Cambridge, Massachusetts 02138-2020, U.S.A.
²Kunming Institute of Botany, Chinese Academy of Sciences, Heilongtan, Kunming 650204, Yunnan, China
³The Kochi Prefectural Makino Botanical Garden, Godaisan 4200-6, Kochi city, Kochi 781-8125, Japan
⁴Institute of Botany, Chinese Academy of Sciences, 20 Nanxincun, Xiangshan, Beijing 100093, China
⁵Negaunee Integrative Research Center, Department of Science and Education, Field Museum of Natural History, 1400 South Lake Shore Drive, Chicago, Illinois 60605-2496, U.S.A.
⁶Key Laboratory of Biodiversity Conservation of Southwest China, National Forestry and Grassland Bureau, Southwest Forestry University, Kunming, Yunnan Province, 650224, China
⁷School of Life Sciences, Yunnan Normal University, Kunming 650500, Yunnan, China

^*Corresponding author: david_boufford@harvard.edu