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
A very rare species of coastal siliceous rocks currently known only from the Lizard
Peninsula. Old specimens from the Isle of Man, Cumberland and Westerness have been recently re-examined and found not to be this species. During a recent Plantlife survey (2000) C. aractina was found in abundance on serpentine in the Kynance cove area. This species also proved to be unexpectedly frequent on serpentine along the eastern coast of the Peninsula, with at least eight scattered sites from Enys Head to Coverack. None of the populations appear to be threatened.
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.