Basionym Name:Buellia siplei C.W. Dodge & G.E. Baker, Ann. Mo. bot. Gdn 25: 635 (1938)
Homotypic synonyms:Diplotomma siplei (C.W. Dodge & G.E. Baker) C.W. Dodge, Lich. Fl. Antarct. Cont. adjac. Isls (Canaan, N. Hamp.): 347 (1973)