Unidentified coastal lichen

Unidentified coastal lichen

Observation - Unidentified coastal lichen - UK and Ireland. Description: Brown/orange and grey/white lichen on horizontal north east facing limestone, on southtyneside coast. At first I thought it was foliose as it could easily be removed without damage but, on looking at www.britishlichens.co.uk, I think it may be a crustose

Brown/orange and grey/white lichen on horizontal north east facing limestone, on southtyneside coast. At first I thought it was foliose as it could easily be removed without damage but, on looking at www.britishlichens.co.uk, I think it may be a crustose lichen with soredia as it was quite powdery.