Thallus tufted, erect to pendant, with flat, strap-like or curved and pointed branches. Soralia absent, apothecia frequent, laminar or marginal,and with pale pycnidial ostioles. Similar to Ramalina cuspida but found in more exposed coastal sites. Both species are referred to as Sea Ivory and eaten by sheep in Shetland

References: 
Smith, C.W. et al. editors (2009) The Lichens of Great Britain and Irelandd
Dobson, F.S. (2018) Lichens: an Illustrated Guide to the British and Irish Species