Sticta pulmonacea. Oak lung, Lungwort, Aikraw Hazelraw, Oak-rag, Hazel crottle, Rags. Found on trees in England, Scotland, North of Ireland, Scandinavia. It dyes wool orange and is said to have been used by the Herefordshire peasantry to dye stockings brown. Some species yield beautiful saffron or gamboge coloured dyes, e.g. S. flava crocata, aurata.
S. scrobiculata. Aik-raw, Oak rag. Found on trees in Scotland and England.
FOOTNOTES:
[D] From an article by Dr. Lauder Lindsay on "The Dyeing Properties of Lichens." The Edinburgh Philosophical Journal, July to October, 1855.