Caloplaca oasis

(top image: frequently parasiting Verrucaria sp.)

Crustose saxicolous, on calcareous rocks and artificial substrata (concrete and mortar).
Note: apothecia 0,2 - 0,4 mm wide, spore septum wide: 1/4 of spore length, spores 9,5-13 x 4,5-6,5 micras.

Altitude: 820 m
Lithology: limestone
Municipality: Felíx