Synonymy:
Porina leioplaca Ach. [as 'lejoplaca'], K. Vetensk-Acad. Nya Handl. 30(3): 159 (1809)
Endocarpon leioplacum (Ach.) Sommerf. [as 'lejoplacum'], Suppl. Fl. lapp. (Oslo): 135 (1826)
Pertusaria communis f. leioplaca (Ach.) Fr., Lich. eur. reform. (Lund): 421 (1831)
Pertusaria communis var. leioplaca (Ach.) Fr., Lich. eur. reform. (Lund): 421 (1831)
Pertusaria pertusa var. leioplaca (Ach.) Tuck., Enum. N. America Lich.: 56 (1845)
Pertusaria pertusa f. leioplaca (Ach.) Tuck., Enum. N. America Lich.: 56 (1845)
Parmelia leioplaca (Ach.) Nyl., Mém. Soc. Imp. Sci. Nat. Cherbourg 5: 301 (1858) [1857]

Porina leucostoma (Ach.) Ach., Lich. Univ.: 308 (1810)
Endocarpon pertusum var. leucostoma (Ach.) Bernh., in Wahlenberg, Fl. Suec. 2: 873 (1826)
Endocarpon verrucosum f. leucostomum (Ach.) Wallr., Fl. crypt. Germ. (Norimbergae) 1: 313 (1831)
Pertusaria leucostoma (Ach.) A. Massal., Ric. auton. lich. crost. (Verona): 188 (1852)

Thelotrema leucostomum Ach., Methodus qua omnes detectos Lichenes Secundum Organa Carpomorpha ad Genera, Species et Varietates Redigere atque Observationibus Illustrare Tentavit Erik Acharius: 132 (1803)
Sphaeria leucostoma Bernh., Bol. Geol. (Bogota) 2: 11 (1832)

Pertusaria alpina Hepp ex Ahles, Pertus. et Conotr.: 12 (1860)
Pertusaria leioplaca var. alpina (Hepp ex Ahles) Arnold, Flora, Regensburg 57(29): 450 (1874)

Position in classification:
Pertusaria, Pertusariaceae, Pertusariales, Ostropomycetidae, Lecanoromycetes, Ascomycota, Fungi

Note:
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