Please cite this data as follows, and pay attention to the rights documented in the rights.txt:
Please respect the rights declared for each dataset in the download: 
British Lichen Society: BLS Lichen Database: Wales doi:10.15468/rbsztb
National Biodiversity Data Centre: Collated by the National Biodiversity Data Centre from different sources - Ireland's BioBlitz. Dataset/Occurrence. doi:10.15468/aiiz3z
Natural History Museum, University of Oslo: Lichen field notes, Oslo (O) doi:10.15468/zrfxcu
Merseyside BioBank: Merseyside BioBank (unverified) doi:10.15468/iou2ld
GBIF-Sweden: OHN doi:10.15468/u5wjib
Senckenberg: Herbarium Senckenbergianum (FR) - Fungi doi:10.15468/0oaq5v
UK National Biodiversity Network: John Muir Trust - A Lichen Survey of the Ben Nevis Plateau doi:10.15468/1qw5ft
Natural History Museum, University of Tartu: Natural History Museum, University of Tartu doi:10.15156/bio/587444
naturgucker.de: naturgucker doi:10.15468/uc1apo
Universität Regensburg, IBF Monitoring of Lichens doi:10.15468/hs6htt
British Lichen Society: BLS Mapping Scheme dataset, 1750-2009 doi:10.15468/glbi05
Sipman, H. 1986 - (continuously updated): LICHCOL - database of the lichen collection at the Herbarium Berolinense (B). doi:10.15468/gmyyyu
Hennekens S (2015): Dutch Vegetation Database (LVD). v1.6. Alterra, Wageningen UR. Dataset/Samplingevent. http://doi.org/10.15468/ksqxep, http://doi.org/10.15468/ksqxep doi:10.15468/ksqxep
Council of Heads of Australasian Herbaria (CHAH): Australia's Virtual Herbarium doi:10.15468/rhzrxw
Royal Horticultural Society: RHS monitoring of native and naturalised plants and animals at its gardens and surrounding areas doi:10.15468/mjksef
Canadian Museum of Nature Herbarium (The National Herbarium of Canada) doi:10.15468/88qq3e
British Lichen Society: BLS Lichen Database: English churchyards doi:10.15468/0duny2
Dorset Environmental Records Centre: Dorset SSSI Species Records 1952 - 2004 (Natural England) doi:10.15468/vcjzts
Polar-Alpine Botanical Garden-Institute of N.A. Avrorin KSC RAS: Specimens of lichen herbarium KPABG doi:10.15468/nctfm2
Biologiezentrum Linz Oberoesterreich: Biologiezentrum Linz doi:10.15468/ynjblx
Botanical Garden & Museum, Natural History Museum of Denmark: Botanical Museum, Copenhagen, the Lichen Herbarium doi:10.15468/itaoh5
Michigan State University Herbarium Lichens Collection doi:10.15468/mym4z7
Natural History Museum, University of Oslo: Lichen herbarium, NTNU University Museum doi:10.15468/pbejbi
GEO-Tag der Artenvielfalt: Biosphärenpark Wienerwald - Wiener Steinhofgründe doi:10.15468/xnbfxv
University of Washington Burke Museum. WTU Herbarium Lichen Collection. Seattle, Washington. doi:10.15468/b7x6fn
Auckland War Memorial Museum: Auckland Museum Botany Collection doi:10.15468/mnjkvv
Staatliche Naturwissenschaftliche Sammlungen Bayerns: The Lichen Collection at the Botanische Staatssammlung München doi:10.15468/lqetda
KANU Lichen Collection doi:10.15468/0xlhx0
Plants of Papua New Guinea, Repatriation of Electronic Accession Data to the Papua New Guinea National Herbarium, an online database provided by the National Herbarium of New South Wales (NSW) for the Papua New Guinea National Herbarium (LAE). Online at: http://plantnet.rbgsyd.nsw.gov.au/PNGplants/ doi:10.15468/adw1tp
University of Bergen: Lichen herbarium, UiB doi:10.15468/gpfklm
NA doi:10.15468/b4yqdy
British Lichen Society: BLS Lichen Database: Welsh churchyards doi:10.15468/mzl8ef
GEO-Tag der Artenvielfalt: Artenvielfalt auf der Weide - GEO-Hauptveranstaltung in Crawinkel doi:10.15468/tzcuw3
Natural History Museum, University of Oslo: Lichen herbarium, Oslo (O) doi:10.15468/ktu7bj
UK National Biodiversity Network: Countryside Council for Wales - Welsh Invertebrate Database (WID) doi:10.15468/bv8fcj
UK National Biodiversity Network: John Muir Trust - List of Lichen Species recorded on high ground in the Ben Nevis range doi:10.15468/ebpowr
Suffolk Biodiversity Information Service: Suffolk Biodiversity Information Service (SBIS) Dataset doi:10.15468/ab4vwo
Wrocław University, Museum of Natural History: Herbarium WRSL, Lichens Collection doi:10.15468/05l4gx
UK National Biodiversity Network: Staffordshire Ecological Record - SER Species-based Surveys doi:10.15468/q8qen3
Naturalis Biodiversity Center: Naturalis Biodiversity Center (NL) - Botany Leiden doi:10.15468/ib5ypt
Natural History Museum (2015): Collection specimens data.nhm.ac.uk., http://dx.doi.org/10.5519/0002965 doi:10.5519/0002965
GEO-Tag der Artenvielfalt: Artenvielfalt am Schlern doi:10.15468/5zx5yb
Lund Botanical Museum (LD): Lund Botanical Museum (LD) doi:10.15468/c4w4co
UK National Biodiversity Network: John Muir Trust - Knoydart Lichens, 1990 doi:10.15468/bxyy29
Pizarro, JosÃ© et al. (2005), MAF Lichen collection online database, UCM doi:10.15468/yvj3hr
The Norwegian Biodiversity Information Centre (NBIC): Norwegian Species Observation Service doi:10.15468/zjbzel
National Trust for Scotland: National Trust for Scotland Species Records doi:10.15468/a5y1cz
Danish Mycological Society (2016). Fungal records database. >500.000 records, contributed by Frøslev, T., Heilmann-Clausen, J., Jeppesen, T.S., Lange, C., Læssøe, T., Petersen, JH., Vesterholt, J., online www.svampeatlas.dk doi:10.15468/zn159h
ArtDatabanken: Artdata doi:10.15468/kllkyl
University of Oulu: Fungi collection of the Botanical Museum of the University of Oulu doi:10.15468/aguzyj
GEO-Tag der Artenvielfalt: Zukünftiges NSG Höftland/Bockholmwik doi:10.15468/licmym
Finnish Museum of Natural History: Lichens from Russian Fennoscandia doi:10.15468/go7wfk
Icelandic Institute of Natural History, Akureyri Divison doi:10.15468/hkydl2
Atienza, V &amp; al. (2008). VAL Cryptogamic collections online databases doi:10.15468/okajpo
GEO-Tag der Artenvielfalt: Schlern - (Bozen) doi:10.15468/ysinjd
British Lichen Society: BLS Lichen Database: Scotland doi:10.15468/tbig5c
Finnish Museum of Natural History: Erik Acharius lichen collection doi:10.15468/17xl01
HLADUN, NÉSTOR (fecha de consulta). Módulo LiquenCat. Banc de Dades de Biodiversitat de Catalunya. Generalitat de Catalunya i Universitat de Barcelona. http://biodiver.bio.ub.es/biocat/homepage.html doi:10.15468/kxoxgy
Staatliche Naturwissenschaftliche Sammlungen Bayerns: The Collection of Lichenicolous Fungi at the Botanische Staatssammlung München doi:10.15468/ni5yho
Harvard University Herbaria, Index of Botanical Specimens., Harvard University Herbaria, Index of Botanical Specimens doi:10.15468/o3pvnh
Arizona State University, Global Institute for Sustainability: Arizona State University Lichen Collection doi:10.15468/icuvpo
GBIF-Sweden: Herbarium of Umeå University (UME) doi:10.15468/gatdg4
GBIF-Sweden: Fungi (S) doi:10.15468/qfmb77
Shirley C. Tucker Herbarium at Louisiana State University (LSU) doi:10.15468/cepqls
GBIF-Sweden: Gothenburg Herbarium - General (GBIF:IH:GB:Herbarium) doi:10.15468/afkfpi
Scientific Research Centre of the Slovenian Academy of Sciences and Arts, Institute of Biology: FloVegSI - Floristical and fitocenological database of ZRC SAZU doi:10.15468/v3vxya
University of Białystok, Institute of Biology: Lichens of Knyszyn Forest doi:10.15468/li7ebu
Lichen diversity in forests, contributed by Steffen Boch, Daniel Prati, Markus Fischer, Exploratories for large-scale and long-term functional biodiversity research, https://www.bexis.uni-jena.de/PublicData/PublicData.aspx?DatasetId=4460 doi:10.15468/vtxeug
University of British Columbia Lichen Collection (UBC). http://dx.doi.org/10.5886/8hh3tyfd. (consulted on [date]), doi:10.5886/8hh3tyfd doi:10.5886/8hh3tyfd
British Lichen Society: BLS Lichen Database: England doi:10.15468/jskjlm
Highland Biological Recording Group: HBRG Fungus, Lichen & Lower Plants Dataset doi:10.15468/rt48my
Field Museum: Field Museum of Natural History (Botany) Lichen Collection doi:10.15468/sc258x
University of Graz, Institute of Plant Sciences: Karl Franzens University of Graz, Insitute for Botany - Herbarium GZU doi:10.15468/4oacx3
GEO-Tag der Artenvielfalt: Gelände des IVL (Zeckern) doi:10.15468/zql8uz
University of Białystok, Institute of Biology: Lichens of Biebrza National Park doi:10.15468/ejougx
Herbario LEB "Jaime Andrés Rodríguez". Facultad de Ciencias Biológicas y Ambientales. Universidad de León. España, http://herbarioleb.unileon.es doi:10.15468/waz5x0
iNaturalist.org: iNaturalist Research-grade Observations doi:10.15468/ab3s5x