Hypogymnia occidentalis L.H. Pike  
Family: Parmeliaceae
Hypogymnia occidentalis image
Stephen Sharnoff  
Hypogymnia occidentalis image
Jason Hollinger  
Hypogymnia occidentalis image
Stephen Sharnoff  
Hypogymnia occidentalis image
Stephen Sharnoff  
Hypogymnia occidentalis image
Stephen Sharnoff