Basionym Name:Placopsis alphoplacoides var. clavifera I.M. Lamb, Lilloa 13: 234 (1947)
Homotypic synonyms:Placopsis clavifera (I.M. Lamb) D.J. Galloway, Biblthca Lichenol. 78: 54 (2001)Placopsis trachyderma var. clavifera (I.M. Lamb) P. James, in Mark et al., N.Z. Jl Bot. 2: 82 (1964)