1 | Department of Biology, Duke University, Durham, NC 27708-0338,
USA |
2 | Evolution and Conservation Biology, University of Liège, B-4000
Liège, Belgium |
3 | Life Science School, Ningxia University, Yinchuan, Ningxia Hui Autonomous
Region 750021, China |
4 | UBC Herbarium, Beaty Museum, University of British Columbia,
Vancouver, BC V6T 1Z4, Canada |