Basionym Name:Buellia modesta var. palmensis Vain., Bolm Soc. broteriana, Coimbra, sér. 2 6: 147 (1930)
Homotypic synonyms:Buellia americana var. palmensis (Vain.) Zahlbr., Cat. Lich. Univers. 10: 636 (1940)Buellia palmensis (Vain.) C.W. Dodge, Beih. Nova Hedwigia 38: 154 (1971)