1. Department of Research and Education, Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, The Netherlands
2. Department of Biology, Research Group Mycology, Ghent University, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
3. Department of Biological Sciences, California State Polytechnic University, Humboldt, Arcata, California 95521
4. Research Department, Meise Botanic Garden, Nieuwelaan 38, 1860 Meise, Belgium
5. Department of Botany and Plant Pathology, Purdue University, West Lafayette, Indiana 47907