Stone bridge wall lichens 1

Stone bridge wall lichens 1

Observation - Stone bridge wall lichens 1 - UK and Ireland. Description: Growing on a stone bridge wall, a grey foliose lichen measuring, from left to right, approximately 190cm. Some of the lobes are slightly curled upwards and edged with brown, possibly dry. The centre is densely covered with isidia. I saw no apothecia. I th

Growing on a stone bridge wall, a grey foliose lichen measuring, from left to right, approximately 190cm. Some of the lobes are slightly curled upwards and edged with brown, possibly dry. The centre is densely covered with isidia. I saw no apothecia. I think this may be Parmelia saxatilis.