C.  Wetmore, ?The lichen genus Caloplaca in North and Central America with brown or black apothecia.?, The Bryologist, vol. 86, no. 6, pp. 813-838, 1994.

J. W.  Sheard and May, P. F., ?A synopsis of Amandinea (Lichinized Ascoymycetes, Physciaceae) as presently known in North America.?, The Bryologist, vol. 100, no. 2, pp. 159-169, 1997.

A. L.  Aptroot, Sparrius, S., LaGreca, S., and Bungartz, F., ?Angiactis, a new crustose lichen genus in the family Roccellaceae with species from Bermuda, the Galapagos Islands, and Australia.?, The Bryologist, vol. 111, no. 3, pp. 510-516, 2008.