Basionym Name:Psorotichia riparia Arnold, Flora, Regensburg 42: 145 (1859)
Homotypic synonyms:Collemopsis riparia (Arnold) Trevis., Rc. Ist. Lomb., Milano, ser. 2 13: 76 (1880)Porocyphus riparius (Arnold) Körb., Parerga lichenol. (Breslau) 5: 440 (1865)Pyrenopsis riparia (Arnold) Nyl., Annls Sci. Nat., Bot., sér. 4 12: 295 (1859)