Map lichen

Map lichen

Observation - Map lichen. Description: Yellow, crustose lichen with a black prothallus and black lecideine fruits. Some individual, and some form mosaic-like groups with adjoining lichens. On sandstone gravestones.

Yellow, crustose lichen with a black prothallus and black lecideine fruits. Some individual, and some form mosaic-like groups with adjoining lichens. On sandstone gravestones.