Basionym Name:Hymenoscyphus flexipes Cooke & W. Phillips, [as 'Hymenoscypha'] Grevillea 19(no. 92): 106 (1891)
Homotypic synonyms:Helotium flexipes (Cooke & W. Phillips) Boud., Hist. Class. Discom. Eur. (Paris): 114 (1907)Phialea flexipes (Cooke & W. Phillips) Sacc., Syll. fung. (Abellini) 10: 9 (1892)