Basionym Name:Umbilicaria pertusa Rass., C. r. Acad. Sci., U.R.S.S.: 348-350 (1929)
Homotypic synonyms:Lasallia pensylvanica var. pertusa (Rass.) Llano, Hvalråd. Skr. 48: 122 (1965)Lasallia pertusa (Rass.) Llano, Monograph of the Lichen Family Umbilicariaceae in the Western Hemisphere: 48 (1950)Lasallia pertusa f. pertusa (Rass.) Llano, Monograph of the Lichen Family Umbilicariaceae in the Western Hemisphere: 48 (1950)Umbilicaria pensylvanica f. pertusa (Rass.) Rass., Acta Inst. Bot. Acad. Sci. URSS, Ser. 2 3: 636 (1936)