Basionym Name:Pertusaria subviridis f. sordidescens Erichsen, Rabenh. Krypt.-Fl., Edn 2 (Leipzig) 9(5.1): 549 (1936)
Homotypic synonyms:Ochrolechia subviridis f. sordidescens (Erichsen) Erichsen, Annls mycol. 40(1/2): 147 (1942)