Martinez, I. & Burgaz, A. R. (1996): Anatomical study of Peltigera canina, P. membranacea and P. praetextata (lichenized Ascomycotina)
Ann. Bot. Fennici 33: 223–229.
Liška J., Palice Z. & Slavíková Š. (2008): Checklist and Red List of lichens of the Czech Republic
Preslia 80(2): 151–182, 2008.
Hansen, E. S. (2007): Lichens from Upernavik island, NW Greenland
Willdenowia 37(1),pages 353-362
Christensen, S. N. (2007): Lichens of Cupressus sempervirens on the Aegean islands of Kriti and Kos, Greece
Willdenowia 37(2), pages 577-585
Vondrák J., Kocourková J., Palice Z. & Liška J. (2007): New and noteworthy lichens in the Czech Republic – genus Caloplaca
Preslia 79(2): 163–184, 2007.
Boom, P. P. G. van den, Elix, J. A. & Sipman, H. J. M. (2007): New or interesting lichen records from Guatemala I
Willdenowia 37(1),pages 363-376