Monogr. Brit. Lich. 2: 315 (1911). Basionym: Verrucaria salweyi Leight. ex Nyl., Act. Soc. linn. Bordeaux 21: 435 (1856).
Basionym: Verrucaria salweyi Leight. ex Nyl., Act. Soc. linn. Bordeaux 21: 435 (1856).