Family: Ophioparmaceae
Ophioparma ventosa (L.) Norman
Blood-spot
Type: Crustose
One of the easier crustose lichens to identify with its red to red-brown apothecia. Very common on upland siliceous rocks
References:
Smith, C.W. et al. editors (2009) The Lichens of Great Britain and Irelandd
Dobson, F.S. (2018) Lichens: an Illustrated Guide to the British and Irish Species