1. Biodiversity and Conservation Area, Department of Biology and Geology, Physics and Inorganic Chemistry, Rey Juan Carlos University, C/Tulipán s/n, 28933 Móstoles, Spain
2. Royal Botanic Gardens, Kew, Richmond, London TW9 3DS, UK
3. Department of Mycology, Real Jardín Botánico (CSIC), 28014 Madrid, Spain
4. Museo de Ciencias Naturales (CSIC), 28006 Madrid, Spain