Basionym: Hygrophorus fornicatus Fr., Epicrisis Systematis Mycologici: 327 (1838) [MB#176282] Obligate synonyms: - Neohygrocybe fornicata (Fr.) Herink, Sborník Severoceského Musea 1: 71 (1958) [MB#103613] - Neohygrocybe fornicata (Fr.) Kovalenko, Opredelitel' Gribov SSSR: 39 (1989) [MB#127383] - Camarophyllus fornicatus (Fr.) P. Karst., Bidrag till Kännedom av Finlands Natur och Folk 32: 227 (1879) [MB#455781] - Porpoloma fornicata (Fr.) Bresinsky, Regensburger Mykologische Schriften 11: 233 (2003) [MB#487469] - Dermolomopsis fornicata (Fr.) Vizzini, Micologia e Vegetazione Mediterranea (2011) [MB#563521] - Cuphophyllus fornicatus (Fr.) Lodge, Padamsee & Vizzini, Fungal Diversity 64: 80 (2013) [MB#804132] - Porpolomopsis fornicata (Fr.) Bresinsky, Regensburger Mykologische Schriften 15: 145 (2008) [MB#584307] Taxonomic synonyms: - Hygrophorus fornicatus var. clivalis Fr., Monographia Hymenomycetum Sueciae 1: 134 (1857) [MB#373006] - Hygrocybe fornicata var. clivalis (Fr.) Bon, Documents Mycologiques 19 (75): 56 (1989) [MB#136418] - Hygrophorus clivalis (Fr.) Quél., Bulletin de la Société Botanique de France 24: 322 (1878) [MB#206754] - Hygrocybe clivalis (Fr.) P.D. Orton & Watling, Notes from the Royal Botanical Garden Edinburgh 29 (1): 131 (1969) [MB#332164] - Camarophyllus fornicatus var. clivalis (Fr.) P. Karst., Bidrag till Kännedom av Finlands Natur och Folk 32: 227 (1879) [MB#499640]