Flora, Regensburg 64: 196 (1881). Basionym: Lichen pyrinus Ach., Lich. Suec. Prodr. (Linköping): 52 (1799) [1798].
Basionym: Lichen pyrinus Ach., Lich. Suec. Prodr. (Linköping): 52 (1799) [1798].