The descriptive text, below the map, is from the Cornish Red Data Book (2009). The map on this web page depicts the organisms distribution and shows the records made pre-2000 and those made since.
Range & Status
The lichen is known from seven sites, on Tresco, St. Mary' s and Bryher, in the Isles of
Scilly, and near Land' s End. It is also known from the Channel Islands and the coast of France, Spain, Portugal, Sardinia and Algeria. It grows on sunny, exposed, hard, crystalline granite near the sea. There are no apparent threats to this species at present.
I.J. Bennallick, S. Board, C.N. French, P.A. Gainey, C. Neil, R. Parslow, A. Spalding and P.E. Tompsett. eds. 2009. Red Data Book for Cornwall and the Isles of Scilly. 2nd Edition.Croceago Press.
The Cornish Red Data Book Project was led by the Cornwall and Isles of Scilly Federation for Biological Recorders (CISFBR). The full text and species accounts (minus the maps) are available on the CISFBR website.