Xanthoparmelia cumberlandiandia. These lichens may be immortal. See the New YoK Times article: nyti.ms/VtDY79 . Photographed at Point Reyes National Seashore.
Kohler's Medizinal-Pflanzen in naturgetreuen Abbildungen mit kurz erlauterndem Texte :.Gera-Untermhaus :Fr. Eugen Kohler,[1883-1914].biodiversitylibrary.org/page/303706
Summary[edit] Description: Lecanora impudens Degel. 20090623 (photo #85) near Grande Cache, Alberta Okay, I'm taking some liberties with the common name. Thanks to Curtis for the ID. Date: 12 August 2009, 19:12. Source: Impudent Rim-Lichen Uploaded by Amada44. Author: Jason Hollinger.
Summary[edit] Description: San Gabriel Peak, San Gabriel Mts, southern California, 20120803. Date: 2 August 2012, 10:56. Source: Aspicilia confusa. Author: Jason Hollinger.