1. Department of Forest Sciences, The University of British Columbia, 3041–2424 Main Mall, Vancouver, BC V6T 1Z4, Canada.
2. Albrecht von Haller Institute of Plant Sciences, University of Göttingen, Untere Karspüle 2, D-37073 Göttingen, Germany.
3. Enlichened Consulting Ltd., Edgewood Blue, P.O. Box 131, Clearwater, BC V0E 1N0, Canada.
4. Stillinger Herbarium, University of Idaho, Moscow, ID 83843, USA.