Buellia sequax


Crustose saxicolous on siliceous rocks.
Note: thallus K-, C-, KC-, I-, whitish-ochre, fisurate, more or less aerolate. Apothecia lecideine, black; epithecium grayish brown-greenish; hipothecium clear top and brown down. Spores uni-septate,10-12,5 x 5,5-6,5 micras:


Lithology: quartzite crystallizations between andesites
Altitude: 20 m
Municipality: Níjar