Picture taken on the 1st July 2007 close to Parador Aiguablava, Girona, on siliceous rock, both Nord and South oriented, ombrophilous, vertical position for such reason,15 m. altitude, close the sea.
Common lichen,saxicolous, termophilous, ombrophilous, frequent in the Meditrerranean area. Mentioned at Medes Iles by Drs. Llimona, Hladun and Gómez.
Crustose lichen, thallus areolate, gray,thich with small lecanorine apothecia in the form massiliensis. There is another form called sorediata, with asexual reproduction. Both forms are frequent in the nearby of Bagur.