I can find no trace of a Prof.Bruno Maresca in the Mycological Society of America directory, nor in the directory of mycologists online. David W. Fischer http://members.aol.com/xerula Coauthor, "Edible Wild Mushrooms of North America" (1992, Univ. of Texas Press) and "Mushrooms of Northeastern North America" (due in 1997, Syracuse Univ. Press)