Fl. berol. prodr.: 347 (1787).

Basionym: Lichen aphthosus L., Sp. pl. 2: 1148 (1753).

Chemistry: 3-0-β-D-Glucopyranosyl-D-mannitol (C. F. Culberson 1969, Huneck & Yoshimura 1996: 133).