Basionym Name:Chapsa isidiifera Frisch & Kalb, Biblthca Lichenol. 99: 136 (2009)
Homotypic synonyms:Pseudochapsa isidiifera (Frisch & Kalb) Parnmen, Lücking & Lumbsch, PLoS ONE 7(12): e51392, 10 (2012)