Basionym Name:Lichen descissus Ach., Lich. suec. prodr. (Linköping): 137 (1799)
Homotypic synonyms:Collema descissum (Ach.) Ach., Lich. Univ.: 653 (1810)Lichen furvus * descissum (Ach.) Lam., Encycl. Méth. Bot., Suppl. (Paris) 3(2): 416 (1813)Parmelia descissa (Ach.) Ach., Methodus, Sectio post. (Stockholmiæ): 248 (1803)