1. USDA-ARS, Systematic Botany and Mycology Lab, Beltsville, Maryland 20705
2. Biology Department, Clark University, Worcester, Massachusetts 01610
3. Department of Biology, University of Wisconsin, Platteville, Wisconsin 53818
4. Göteborg University, Department of Plant and Environmental Sciences, Göteborg, Sweden
5. J.W. Goethe-Universität Frankfurt, Department of Mycology, Frankfurt, Germany
6. Department of Plant Biology, University of Minnesota, St Paul, Minnesota 55108
7. USDA-ARS, Cereal Disease Lab, University of Minnesota, St Paul, Minnesota 55108
8. Universität Tübingen, Spezielle Botanik und Mykologie, Tübingen, Germany
9. CREM, SABT, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal