Caloplaca aractina

Crustose, saxicolous on siliceous rocks.
Note: thallus lumpty-aerolate, granulose, apothecia K+ purple:

Spores 11-14 x 6.5-8.5 microns with septum 4.5-5 microns:

Spores into the ascus

Lithology: schist
Altitude: 1735 m
Municipality: Velefique