Staurothele drummondii (Tuck.) Tuck.  
Family: Verrucariaceae
[Endocarpon drummondii (Tuck.) M. Choisy]
Staurothele drummondii image
Stephen Sharnoff  
Staurothele drummondii image
Troy McMullin  
Staurothele drummondii image
Stephen Sharnoff  
Staurothele drummondii image
Stephen Sharnoff  
Staurothele drummondii image
Garry Neil