Photo 706189, (c) Justin Johnsen, some rights reserved (CC BY), uploaded by Justin Johnsen

Attribution © Justin Johnsen some rights reserved Uploaded by justin2 Source Flickr Original http://www.flickr.com/photos/justinjohnsen/12955222245/ Associated observations Photos / Sounds What Buellia dispersa Observer justin2 Date December 29, 2013 10:35 AM PST Place Joshua Tree National Park, Riverside County, US-CA, US (Google, OSM) Date Added March 5, 2014 12:17 PM PST Description White and black lichen at Joshua Tree. Finger tip included for rough scale 4 comments 3 IDs Research Grade View Sizes small medium large original