"*Tricholoma umbrosum (A.H.Sm. & M.B.Walters (1943)" . . . "Porpoloma umbrosum" . . . "Porpoloma umbrosum" . . "*Cantharellula umbrosa (A.H.Sm. & M.B.Walters) Singer (1951)" . . . . "*Porpoloma elytroides var. umbrosum (A.H.Sm. & M.B.Walters)Bon(1990)" . . . . .