Italians in the History of Mycology: Proceedings of a symposium held in the Archivio Centrale dello Stato, Rome, 4-5 October 1995. Edited by Onofri S, Graniti A, Zucconi L. Published by Mycotaxon Ltd. 1999
The role of P.A. Micheli in the development of mycology is reviewed. The relevance of detection of the occurrence of reproductive structures in Ascomycetes and Basidiomycetes is highlighted. Pioneering in use of the microscope, he first observed and described, with cdetailed illustrations, basidia and cystidia on the lamellae of agarics. He equated spores with seeds and proved, through germination experiments, the origin of new sporophores from spores.