James F. White jr. is Professor of Plant Biology and Pathology at Cook College, Rutgers University, New Brunswick, New Jersey. Dr. White received the B.S. degree in botany and the M.S. degree in mycology and plant pathology from Auburn University, Alabama, and the Ph.D. degree in mycology and botany from the University of Texas, Austin. Charles W. Bacon is the Supervisory Microbiologist and Research Leader of the Toxicology and Mycotoxin Research Unit at the R. B. Russell Agricultural Researc Center, US Department of Agriculture, Athens, Georgia. He received the B.S. degree in biology and chemistry from Clark College, Atlanta, Georgia, and the Ph.D. degree in botany from the University of Michagan, Ann Arbor. Nigel L. Hywel-Jones is Head of Mycology, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Bangkok, Thailand. Joseph W. Spatafora is Associate Professor and Curator of Fungi, Oregon State University, Corvallis. He received the Ph.D. (1992) degree from Louisiana State University, Baton Rouge.