1. Department of Plant Pathology and Microbiology, Iowa State University, 2213 Pammel Drive, 1344 Advanced Teaching and Research Building, Ames, Iowa 50011
2. Department of Biology, Alma College, Alma, Michigan 48801
3. Department of Animal Ecology and Tropical Biology, Research Group Insect-Fungus Symbioses, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
4. Department of Forest Microbiology, Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki 305-8687, Japan
5. Florida Museum of Natural History, University of Florida, Gainesville, Florida 32611