Abstract: The Azorean lichen previously and erroneously referred in the literature toErioderma wrightii, belongs to the complex, widespread species E. leylandii, and is described as subsp.azoricum, possibly representing a relic, ancestral form with a composite chemistry. It is presently only known from Pico where it is under threat owing to the destruction of the forests.
Document Type: Research Article
Botany Dept., Natural History Museum, Cromwell Road, London, SW7 5BD, England 2:
Dept. Botany, University of Bergen, Allégten 41, Bergen, N-5007, Norway