Pseudoclitocybe cyathiformis     (Bull.) Singer,

Synonymy:
Agaricus cyathiformis Bull., Herbier de la France 12: tab. 575 (1792)
Agaricus ectypus sensu Cooke (1870 &; 1882); fide Checklist of Basidiomycota of Great Britain and Ireland (2005)
Agaricus sordidus sensu Bolton [Hist. Fung. Halifax 2: 59 (1788)], non Fr. (1821); fide Checklist of Basidiomycota of Great Britain and Ireland (2005)
Agaricus tardus Pers., Syn. meth. fung. (Göttingen): 461 (1801)
Cantharellula cyathiformis (Bull.) Singer, Annls mycol. 34: 331 (1936)
Clitocybe cinerescens Batsch
Clitocybe cyathiformis (Bull.) P. Kumm., Führer Pilzk.: 120 (1871)
Clitocybe cyathiformis var. cinerascens (Batsch) P. Karst., (1879)
Omphalia cyathiformis (Bull.) Quél., Fl. Analyt. Champ. Supér. (Paris): 129
Omphalia tarda (Pers.) Gray, Nat. Arr. Brit. Pl. (London) 1: 614 (1821)