Basionym Name:Marasmius semisquarrosus Berk. & Cooke, Grevillea 6(no. 40): 129 (1878)
Homotypic synonyms:Chamaeceras semisquarrosus (Berk. & Cooke) Kuntze, Revis. gen. pl. (Leipzig) 3(3): 457 (1898)