Basionym Name:Marasmius sordescens Berk. & M.A. Curtis, Proc. Amer. Acad. Arts & Sci. 4: 120 (1860)
Homotypic synonyms:Chamaeceras sordescens (Berk. & M.A. Curtis) Kuntze, Revis. gen. pl. (Leipzig) 3(3): 457 (1898)