Tricholoma, subgenusTricholoma, sectionAlbidogrisea: North American species found principally in the Great Lakes region

摘要

Fifteen species ofTricholoma, subgenusTricholoma, sectionAlbidogrisea, are described and illustrated. All species occur in the Great Lakes region and many are distributed elsewhere in eastern North America. Four species are new:Tricholoma argenteum,Tricholoma atrodiscum,Tricholoma insigne, andTricholoma pullum. Keys are provided to the sections of subg.Tricholomaand to the species and stirpes of sect.Albidogrisea.