Homotypic Synonyms See Note

Basionym Name:
Umbilicaria pensylvanica Hoffm., Descr. Adumb. Plant. Lich. 3(no. 4): 5 (1801)

Homotypic synonyms:
Gyrophora pensylvanica (Hoffm.) Ach., Lich. Univ.: 227 (1810)
Lasallia pensylvanica (Hoffm.) Llano, Monograph of the Lichen Family Umbilicariaceae in the Western Hemisphere: 42 (1950)
Lasallia pensylvanica f. pensylvanica (Hoffm.) Llano, Monograph of the Lichen Family Umbilicariaceae in the Western Hemisphere: 42 (1950)
Lasallia pensylvanica var. pensylvanica (Hoffm.) Llano, Monograph of the Lichen Family Umbilicariaceae in the Western Hemisphere: 42 (1950)
Lecidea pensylvanica (Hoffm.) Ach., Methodus, Sectio prior (Stockholmiæ): 86 (1803)
Lichen leiocarpus * pensylvanica (Hoffm.) Lam., Encycl. Méth. Bot., Suppl. (Paris) 3(2): 424 (1813)
Lichen pensylvanicus (Hoffm.) Ach., Methodus, Suppl. (Stockholmiæ): 14 (1803)
Parmelia pensylvanica (Hoffm.) Spreng., Mant. fl. halens., add. nov. plant. cent.: 58 (1807)