Picture taken on the 9th March 2008 at Vivers Can Borni, Collserola, Barcelona, Catalonia, on constructive material.
Crustose lichen, thallus white. Apothecia up to 0,5 mm diam., disc and thalline rim from yellow to bright orange-yellow, sometimes forming shallow pits in the substratum. Apothecia may become ibscured when it matures.