Leptogium azureum (Sw.) Mont.  
Family: Collemataceae
[Collema azureum (Sw.) Ach.,  more]
Leptogium azureum image
Stephen Sharnoff  
Leptogium azureum image
Troy McMullin  
Leptogium azureum image
Troy McMullin  
Leptogium azureum image
Gary Perlmutter