P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (11245) 2003/01/23
Domenico Puntillo; Owner: Domenico Puntillo
Italy
Curtis Randall Björk, - CC BY-SA 4.0
Sugarbowl-Grizzly Den Provincial Park, British Columbia, Canada August 2017
Redinger, K. (1938) Arthoniaceae, Graphidaceae . In Kryptogamen-Flora von Deutschland, Österreich und der Schweiz. Band 9, 2 Abt., Part 1 (G. L. Rabenhorst, ed.): 181–404. Leipzig: Borntraeger
