basis of record
Hayward, P. J.; Nelson-Smith, A.; Shields, C. (1996). Collins pocket guide: sea shore of Britain and Europe. <em>Collins pocket guides. Harper-Collins Publishers: London, UK. ISBN 0-00-219955-6.</em> 352 pp. (look up in IMIS) [details]
From other sources
Biology Lichen. [details]
Distribution Atlantic coasts, as far north as SW Britain. [details]
From editor or global species database
From other sources