"In this work are described 143 members of the Genus Mycena, comprising 117 species and 26 varieties or forms, of which 8 are new species and 3 new forms. The descriptions make reference to collections made by the author, in a 20 year period, in numerous Italian and other European locations (Austria, Finland, France, Germany, Netherland, Spain, Slovenia, Sweden, Switzerland, Czech Republic).
The macroscopic descriptions are, for the most part based on observations made immediately on collecting, and shortly after, but always on well protected and adequately preserved fresh material, in small rigid containers. Some descriptions have been received, together with material, from other mycologists. ln these cases, the descriptions have been compiled from photographic images and dried material. All the microscopic observations have been made by the author, in fresh material, or in herbarium material.
The synonyms proposed by R. Kühner, A.H. Smith and R.A. Maas Geesteranus have been largely used, bearing in mind nevertheless that these come from different periods of time, when the quoted authors carried out their studies. Particular considerations have been given to the synonyms proposed by Maas Geesteranus, since this Author has made observations on herbarium material of numerous European and American collectors.
After each species synonym appears the name of the proposing author with indication of the bibliographical reference, useful for consultation of original descriptions. The most important bibliographical references are given at the end of each description, or alongside
the names of synonyms, and are listed in the general bibliography. As far as possible, to facilitate bibliographical searches, the names of the quoted publications are given in full.
As regards the photographic representations, natural lighting has been used where possible, as this gives a better represention of the species, compared to artificial light. For the abbreviations of authors’ names of published species, reference has been made to “Authors of Fungal Names”, recommended by P.M. Kirk & A.E. Ansell, published in Index of Fungi - Supplement - 1992, C.A.B. International."