Crustose Lichen

Crustose Lichen

Observation - Crustose Lichen - UK and Ireland. Description: Growing on the rough weather worn granite surface of rocks above high water mark on a west facing beach on St. Marys, Isles of Scilly. Very pale, almost white, crustose lichen about an inch and a half across, with very distinctive black spots (fruiting b

Growing on the rough weather worn granite surface of rocks above high water mark on a west facing beach on St. Marys, Isles of Scilly.
Very pale, almost white, crustose lichen about an inch and a half across, with very distinctive black spots (fruiting bodies?). Growing in the company of both yellow (top) and black (bottom) crustose lichens.