Collybia sensu lato is one of the groups of fungi of the order Agaricales that has created taxonomic differences of opinion in the scientific community. The generic name Collybia is due to Elias Magnus Fries and first appeared in 1821. Collybia was originally a tribe from an Agaricus classification. In 1857, Friedrich Staude recognized Collybia as a genus. The name Collybia means "small coin". Later in his systematic work of 1838, Fries characterized Collybia as those species with
