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Lecanora muralis
Thallus placodioid (a crust with a lobed, almost foliose margin), pale- to brownish cream, greenish-grey or grey; apothecia with yellow- to grey- or red-brown discs, often crowded and becoming angular.
On natural, bird-enriched rocks, and on concrete and other urban substrates; widespread and becoming very common in urban areas, less so in the north and west. On paving slabs often assumed to be discarded and trodden chewing gum Spotted on a granite wall very exposed to sun
Camera Model: NIKON D300. Exposure Time: 1/60 sec. f/22 ISO Speed Rating: 200. Focal Length: 90.0 mm. Flash fired
Spotted on Mar 31, 2012
Submitted on Apr 15, 2012
1 Comment
I changed the ID to Lecanora muralis