Basionym Name:Polystictus aculeans f. malacensis Sacc. & Paol., Atti Inst. Veneto Sci. lett., ed Arti, Sér. 6 6: 387-428 (1888)
Homotypic synonyms:Polystictus aculeans var. malacensis (Sacc. & Paol.) Sacc., Syll. fung. (Abellini) 6: 282 (1888)