1. Department of Organismic and Evolutionary Biology Harvard University Cambridge Massachusetts 02138 United States
2. Department of Applied Ecology North Carolina State University Raleigh North Carolina 27695 United States
3. Harvard University Herbaria, Department of Organismal and Evolutionary Biology Harvard University Cambridge Massachusetts 02138 United States
4. Departments of Botany, and Forest & Conservation Sciences University of British Columbia Vancouver British Columbia BC V6T 1Z4 Canada
5. African Centre for DNA Barcoding University of Johannesburg Johannesburg Gauteng 2028 South Africa
6. Department of Entomology and Nematology University of California, Davis Davis California 95616 United States