Lecanora rupicola (L.) Zahlbr.  
Family: Lecanoraceae
[Arthonia varians var. sordida (Pers.) Willey,  more]
Lecanora rupicola image
Stephen Sharnoff  
Lecanora rupicola image
Troy McMullin  
Lecanora rupicola image
Samuel Brinker  
Lecanora rupicola image
Stephen Sharnoff  
Lecanora rupicola image
Stephen Sharnoff  
Lecanora rupicola image
Stephen Sharnoff  
Lecanora rupicola image
Stephen Sharnoff