1. 2Department of Biology, Duke University, Durham, North Carolina 27708‐0338 USA;
2. 3Department of Plant Biology, University of Minnesota, St. Paul, Minnesota 55108 USA;
3. 4Department of Biology, Clark University, Worcester, Massachusetts 01610 USA;
4. 5Institute of Botany, Karl‐Franzens‐University Graz, A‐8010 Graz, Austria;
5. 6Department of Botany and Plant Pathology, Oregon State University, Corvallis, Oregon 97331‐2902 USA;
6. 7Plant Taxonomy and Nature Conservation, Gdansk University, Al. Legionow 9, 80‐441 Gdansk, Poland;
7. 8Biodiversity (Mycology and Botany), Agriculture and Agri‐Food Canada, Ottawa, Ontario K1A 0C6 Canada;
8. 9Department of Botany, The Field Museum, Chicago, Illinois 60605‐2496 USA;
9. 10Microbial Genomics Research Unit, National Center for Agricultural Utilization Research, U.S. Department of Agriculture, Agricultural Research Service, Peoria, Illinois 61604‐3999 USA;
10. 11National Natural History Museum, 25 rue Munster, L‐2160 Luxembourg, Luxembourg;
11. 12Department of Bryophytes‐Thallophytes, National Botanic Garden of Belgium, B‐1860 Meise, Belgium;
12. 13Harvard University Herbaria, Cambridge, Massachusetts 02138 USA;
13. 14Institute of Systematic Botany, New York Botanical Garden, New York 10458‐5126 USA;
14. 15Current address: Department of Wood Science, University of British Columbia, Vancouver, British Columbia V6T 1Z4 Canada;
15. 16Genomic Sciences Center, The Institute of Physical and Chemical Research (RIKEN), Yokohama 230‐0045 Japan;
16. 17Department of Plant Pathology, Washington State University, Pullman, Washington 99164‐6430 USA;
17. 18Systematic Botany and Mycology Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Beltsville, Maryland 20705 USA;
18. 19Botanischer Garten und Botanisches Museum Berlin‐Dahlem, Freie Universität Berlin, Berlin D‐14191 Germany;
19. 20The University of Tokyo, Tokyo 101‐0041 Japan