Lichen lacteus Linnaeus, Systema Naturae, ed. 12, 2: 709; Mantissa Plantarum: 132. 1767.

"Habitat ubique in rupibus, saxis. Zoega." RCN: 8160.

Neotype ( Jørgensen & al. in Bot. J. Linn. Soc. 115: 326, 378. 1994): Sweden. Västergötland, Mularp, Stommen, 6 Aug 1922, E.P. Vrang (Malme Lich. Suec. Exs. 848) (UPS).

Current name: Pertusaria lactea (L.) Arnold ( Pertusariaceae).