1. Department of Biology, Clark University, Worcester, Massachusetts 01610
2. Mycology Research Group, Faculty of Biological Sciences, Goethe University, 60438 Frankfurt am Main, Germany
3. Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee 37996, USA
4. Laboratory of Molecular Ecology and Mycology, Institute of Botany, Plant Science and Biodiversity Center, Slovak Academy of Sciences, Bratislava, 84523 Slovakia