Basionym Name:Irpex formosus Sacc., Atti Inst. Veneto Sci. lett., ed Arti, Sér. 6 2: 61 (1884)
Homotypic synonyms:Xylodon formosus (Sacc.) Kuntze, Revis. gen. pl. (Leipzig) 3(3): 541 (1898)