1. Department of Botany, University of British Columbia, 6270 University Boulevard, Vancouver, BC V6T 1Z4, Canada;
2. Smithsonian Tropical Research Institute, PO Box 0843‐03092, Balboa, Ancón, Republic of Panamá;
3. Department of Chemistry, University of British Columbia, 6174 University Boulevard, Vancouver, BC V6T 1Z3, Canada