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
Previously known as P. cartilaginea this inconspicuous terricolous lichen is rare in the UK, being confined to approximately 30 10km squares nationally. It is typically found on highly calcareous, consolidated and moist soils in coastal sites. In Cornwall this species is confined to soils derived from serpentine on the Lizard Peninsula around the Kynance cove area.
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.