Myelochroa obsessa (Ach.) Elix & Hale  
Family: Parmeliaceae
[Parmelia finkii Zahlbr.,  more]
Myelochroa obsessa image
Stephen Sharnoff  
Myelochroa obsessa image
Samuel Brinker  
Myelochroa obsessa image
Samuel Brinker  
Myelochroa obsessa image
Gary Perlmutter  
Myelochroa obsessa image
Stephen Sharnoff