Dermatocarpon reticulatum H. Magn.  
Family: Verrucariaceae
Dermatocarpon reticulatum image
Stephen Sharnoff  
Dermatocarpon reticulatum image
Stephen Sharnoff  
Dermatocarpon reticulatum image
Stephen Sharnoff  
Dermatocarpon reticulatum image
Stephen Sharnoff  
Dermatocarpon reticulatum image
Joselyn Fenstermacher