Ramalina farinacea (L.) Ach.
Tufted thallus with pendant, yellow-green to green-grey, narrow branches. Marginal soralia delimited and often disc-like, round to oval.The commonest member of this genus found growing in tufts on the bark of deciduous trees, rarely on rock
Smith et al. editors (2009) The Lichens of Great Britain and Ireland
Dobson (2018) Lichens: an Illustrated Guide to the British and Irish Species