Vizzini, Alfredo, Giovanni Consiglio, Vladimír Antonín & Marco Contu. A new species within the Gymnopus dryophilus complex (Agaricomycetes, Basidiomycota) from Italy. Mycotaxon 105: 43-52. 2008.

ABSTRACT: Gymnopus inexpectatus, collected from a coastal ecosystem in Italy on a dead branch of Quercus ilex, is proposed as a new species. ITS and LSU rDNA sequences place it in the G. dryophilus complex within sect. Levipedes subsect. Levipedes, where its compact coralloid pileipellis structure and broadly ellipsoid spores (Q = 1.5) make it unique. A Latin diagnosis, technical description, illustrations, and taxonomic speculations on Gymnopus-Marasmiellus relationships are provided. Comparisons with the European, North/South American and Indonesian species that represent the most closely related species are also presented.

KEYWORDS: Collybia, gymnopoid/omphalotoid clade, Mediterranean Agaricales, Omphalotaceae, taxonomy