Gravestone lichen i

Gravestone lichen i

Observation - Gravestone lichen i - UK and Ireland. Description: White warty crustose lichen growing on gravestone (siliceous rock). Lecanorine apothecia with black discs and crinkly outer rims. Narrow prothallus visible in image (ii).Possibly Tephromela atra.

White warty crustose lichen growing on gravestone (siliceous rock). Lecanorine apothecia with black discs and crinkly outer rims. Narrow prothallus visible in image (ii).Possibly Tephromela atra.