Unknown fruticose lichens

Unknown fruticose lichens

Observation - Unknown fruticose lichens - UK and Ireland. Description: Found on fallen beech branch. There were several thalli along this branch - I'm not even sure they're all the same lichen. Do the fruiting bodies belong to the fruticose lichen? And are the vegetative structures along the thallus margins in the first p

Found on fallen beech branch. There were several thalli along this branch - I'm not even sure they're all the same lichen. Do the fruiting bodies belong to the fruticose lichen? And are the vegetative structures along the thallus margins in the first picture soredia? The lichen in the first image appears to be colonised by another yellow organism.