1. Botany Department, Field Museum of Natural History, Chicago, Illinois 60605-2496
2. Illinois Natural History Survey, University of Illinois at Urbana-Champaign, Champaign, Illinois 61820-6970
3. USDA-ARS, Systematic Mycology & Microbiology Laboratory, Room 304, B-011A, 10300 Baltimore Avenue, Beltsville, Maryland 20705-2350