Lecidella elaeochroma?

Lecidella elaeochroma?

Observation - Lecidella elaeochroma? - UK and Ireland. Description: Crustose lichen on lime tree in urban area. Thallus appears to be thin and white/green, with black fruit gums for fruiting bodies. As it happens there apprears to be other crustose lichens in photo - immediately above a lichen with thin brown thallus an

Crustose lichen on lime tree in urban area. Thallus appears to be thin and white/green, with black "fruit gums" for fruiting bodies. As it happens there apprears to be other crustose lichens in photo - immediately above a lichen with thin brown thallus and black fruting bodies, and to the left a black lichen (verrucaria?).