Basionym Name:Verrucaria chionea Mont., Annls Sci. Nat., Bot., sér. 2 19: 58 (1843)
Homotypic synonyms:Polymeridium chioneum (Mont.) R.C. Harris, Lichenogr. Thomsoniana, North American Lichenology in Honor of John W. Thomson (Ithaca): 141 (1998)Pseudopyrenula chionea (Mont.) Zahlbr., Cat. Lich. Univers. 1: 355 (1922)Pyrenula chionea (Mont.) Trevis., Spighe Paglie: 17 (1853)