The Tricholomataceae are a family of fungi in the order Agaricales.
[1] Subsequent molecular research, based on cladistic analysis of DNA sequences, has however found that this wide interpretation of the Tricholomataceae renders the family polyphyletic and is no longer tenable.
In 2014, Sánchez-García and colleagues proposed a revised classification of the Tricholomataceae with just seven genera: Leucopaxillus, Tricholoma, Dennisiomyces, Porpoloma, and the newly circumscribed genera Corneriella, Pogonoloma (now moved to the Pseudoclitocybaceae), and Pseudotricholoma.
[2] Of the genera formerly placed in the Tricholomataceae, Amparoina is considered a synonym of Mycena;[3] Callistosporium (with Pleurocollybia as a synonym) and Macrocybe have been moved to the Callistosporiaceae[4] Catathelasma has been moved to the Biannulariaceae;[4] Phyllotopsis and Tricholomopsis to the Phyllotopsidaceae;[5][6] Leucopholiota and Squamanita to the Squamanitaceae;[7] Pseudoclitocybe, Musumecia, and Pogonoloma to the Pseudoclitocybaceae;[8] Cantharellopsis to the Rickenellaceae;[5] Arthromyces to the Lyophyllaceae;[9] and Hygroaster and Melanomphalia to the Hygrophoraceae;[10] Following changes to the International Code of Nomenclature for algae, fungi, and plants, the practice of giving different names to teleomorph and anamorph forms of the same fungus has been discontinued.
[11] Currently (2023) the following ten genera are accepted in the Tricholomataceae sensu stricto: Albomagister, Corneriella, Dennisiomyces, Dermoloma, Leucopaxillus, Porpoloma, Pseudobaeospora, Pseudoporpoloma, Pseudotricholoma, and Tricholoma.