1. Department of Geography & Environment; School of Geosciences; University of Aberdeen; Elphinstone Road Aberdeen AB24 3UF U.K
2. Mycology Section; Royal Botanic Gardens; Kew, Richmond Surrey TW9 3AB U.K
3. Departamento de Biología Vegetal II; Facultad de Farmacia; Universidad Complutense de Madrid; Plaza Ramón y Cajal Madrid 28040 Spain
4. Department of Life Sciences; The Natural History Museum; Cromwell Road London SW7 5BD U.K
5. Departments of Geography & Environment and Archaeology; School of Geosciences; University of Aberdeen; Elphinstone Road Aberdeen AB24 3UF U.K