Black coastal lichen

Black coastal lichen

Observation - Black coastal lichen. Description: Black crustose lichen on sandstone cliffs and rocks forming coastal band near high water mark. Areolate thallus with lots of small bulging perithecia. Possibly Verrucaria maura [Hydropunctaria maura].

Black crustose lichen on sandstone cliffs and rocks forming coastal band near high water mark. Areolate thallus with lots of small bulging perithecia. Possibly Verrucaria maura [Hydropunctaria maura].