This is the first observation from this location. The genus Caloplaca is the most common here and I sure that several species are present. The object of this observation is a specimen that I bilieve to belong to the species :C. saxicola, although I not sure. The last photograph attached includes the specimens above (at the top) but has other(s) species, and I think that some of them (the ones from bellow) can be classified as C. flavescens.