Atti Soc. ital. Sci. Nat. (Modena) 11: 614 (1868). Basionym: Lichen speciosus Wulfen, in Jacquin, Collnea Bot. 3: 119 (1791) [1789].
Basionym: Lichen speciosus Wulfen, in Jacquin, Collnea Bot. 3: 119 (1791) [1789].