Basionym Name:Stilbum physaroides Speg., [as 'physaroide'] Boln Acad. nac. Cienc. Córdoba 11(4): 615 (1889)
Homotypic synonyms:Stilbum spegazzinianum Sacc., Syll. fung. (Abellini) 10: 682 (1892)