Lecanora albescens

Crustose calcicolous, bearing pollution.

Note: amphitec with dense photobiont layer and many little crystals in the cortex.

Light grey epithecium:

Spores ellipsoidal, simple and colourless, 12-8 x 6-4 micras.
Lithology: artificial substrate and limestone
Altitude: 100 m
Municipality: Almería