Basionym Name:Polyporus polymorphus Holterm., Mykol. Unters. Tropen (Berlin): 95 (1898)
Homotypic synonyms:Polystictus holtermannii Sacc. & P. Syd., [as 'holtermanni'] Syll. fung. (Abellini) 16: 158 (1902)