Homotypic Synonyms See Note

Basionym Name:
Lichen signatus Ach., Lich. suec. prodr. (Linköping): 23 (1799)

Homotypic synonyms:
Graphis signata (Ach.) Wallr., Fl. crypt. Germ. (Norimbergae) 1: 335 (1831)
Graphis signata var. signata (Ach.) Wallr., Fl. crypt. Germ. (Norimbergae) 1: 335 (1831)
Graphis varia f. signata (Ach.) Branth & Rostrup, Bot. Tidsskr. 3: 243 (1869)
Opegrapha diaphora f. signata (Ach.) J. Nowak, Flora Polska, Porosty (Lichenes) (Warszawa-Kraków) 1(1): 165 (1983)
Opegrapha diaphora var. signata (Ach.) Ach., Methodus, Sectio prior (Stockholmiæ): 19 (1803)
Opegrapha hebraica var. signata (Ach.) L. Marchand, in Hall, Vrolik & Mulder, Bijdr. Natuurk. Wetensch. 4: 279 (1829)
Opegrapha notha var. signata (Ach.) Ach., Methodus, Sectio prior (Stockholmiæ): 19 (1803)
Opegrapha pulicaris f. signata (Ach.) Nyl., in Norrlin, Meddn Soc. Fauna Flora fenn. 1: 37 (1876)
Opegrapha signata (Ach.) Ach., K. Vetensk-Acad. Nya Handl. 30(2): 102 (1809)
Opegrapha signata var. signata (Ach.) Ach., K. Vetensk-Acad. Nya Handl. 30(2): 102 (1809)
Opegrapha varia f. signata (Ach.) Schaer., Enum. critic. lich. europ. (Bern): 157 (1850)
Opegrapha varia var. signata (Ach.) Fr., Lich. eur. reform. (Lund): 365 (1831)