Basionym:
Agaricus chalybeus Pers., Synopsis methodica fungorum: 343 (1801) [MB#494602]
Obligate synonyms:
- Gymnopus chalybeus (Pers.) Gray, A natural arrangement of British plants 1: 608 (1821) [MB#486470]
- Acurtis chalybeus (Pers.) Singer, Persoonia 2 (1): 14 (1961) [MB#528907]
- Entoloma chalybeum (Pers.) Zerova, Viznachnik gribiv Ukraini. T. 5. Basidiomycetes: 102 (1979) [MB#528909]
- Leptonia chalybea (Pers.) P. Kumm., Der Führer in die Pilzkunde: 96 (1871) [MB#528910]
- Rhodophyllus chalybeus (Pers.) Quél. (1886) [MB#569769]
Taxonomic synonyms:
- Agaricus columbarius Sowerby, Coloured Figures of English Fungi or Mushrooms 2: 68, t. 161 (1799) [MB#490143]
- Agaricus chalybaeus Pers., Synopsis methodica fungorum: 343 (1801) [MB#197313]
- Rhodophyllus chalybaeus (Persoon) Quélet, Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 60 (1886) [MB#802783]
- Acurtis chalybaeus (Pers.) Singer (1961) [MB#325842]
- Entoloma chalybaeum (Pers.) Noordel. (1982) [MB#110641]
- Leptonia chalybaea (Pers.) P. Kumm. (1871) [MB#162657]
- Entoloma chalybaeum (Pers.) Zerova (1979) [MB#116266]