Biodiversity Data Journal 11: e96466 CO) doi: 10.3897/BDJ.11.e96466 open access Data Paper The Italian lichens dataset from the TSB herbarium (University of Trieste) Matteo Contit, Pier Luigi Nimist, Mauro Tretiach*, Lucia Muggiat, Andrea Moro?, Stefano Martellos* + Dept. Of Life Sciences, University of Trieste, Trieste, Italy Corresponding author: Matteo Conti (matteo.conti@phd.units.it) Academic editor: Maria Prieto Received: 18 Oct 2022 | Accepted: 13 Feb 2023 | Published: 27 Feb 2023 Citation: Conti M, Nimis PL, Tretiach M, Muggia L, Moro A, Martellos S (2023) The Italian lichens dataset from the TSB herbarium (University of Trieste). Biodiversity Data Journal 11: e96466. https://doi.org/10.3897/BDJ.11.e96466 Abstract Background The "Herbarium Universitatis Tergestinae" (TSB), with a total of ca. 50,000 specimens, includes the largest modern collection of lichens in Italy, with 25,796 samples collected from all over the country since 1984, representing 74% of all taxa known to occur in Italy. Almost all specimens have been georeferenced “a posteriori’. The dataset is available through GBIF, as well as in ITALIC, the Information System of Italian Lichens. New information The TSB Herbarium hosts the largest modern lichen collection in Italy, with a total of ca. 50,000 specimens. This dataset contains all of the 25,796 specimens collected within the administrative borders of Italy. Amongst them, 98% are georeferenced and 87% have the date of collection. The dataset includes several type specimens (isotypes and holotypes) and exsiccata. © Conti M et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 2 Conti M et al Keywords collection, diversity, georeference, occurrence, specimens Introduction Herbaria are an important source of falsifiable biodiversity data; stored specimens can be used to validate observations (Willis et al. 2017), to provide data for the assessment of Red Lists (Callmander et al. 2005, Nascimbene et al. 2012), to obtain DNA for answering questions of evolution, genetic diversity etc. (Taylor and Swann 1994) and to depict the presence of a taxon in a specific space and time. Geo-referenced data obtained from specimens can be used in distribution modelling and biogeographic studies to assess the past extent of a taxon (Marsico et al. 2020, Albani Rocchetti et al. 2021), to depict its current distribution and to predict potential range shifts in a global changes scenario (Loiselle et al. 2008, Attorre et al. 2018, Meineke et al. 2018, Lang et al. 2019). The TSB Herbarium hosts the largest modern lichen collection in Italy, with a total of ca. 50,000 specimens. It was the first lichen collection in Italy digitised in a database (Nimis 1990) using the software described by Lagonegro et al. (1982). The Italian collection, started in 1984, contains 25,796 specimens from all parts of the country, mainly resulting from large field surveys, such as those in Sardinia (Nimis and Poelt 1987), eastern Peninsular Italy (Nimis and Tretiach 1999), western Peninsular Italy (Nimis and Tretiach 2004) and in several small islands and protected areas (e.g. Nimis (1985), Nimis et al. (1990), Nimis et al. (1994), Nimis et al. (1996)). The Italian collection hosts also several exsiccata: "Erbario Crittogamico Italiano" (Societa Crittogamologica Italiana) (415 specimens), A. Vézda "Lichenes Selecti Exsiccati" (75), A. Vézda "Lichenes Rariores Exsiccati" (54), "Lichenes Italici Exsiccati" (Societa Lichenologica Italiana) (35) "Plantae Graecenses" (Karl-Franzens-Universitat Graz) (8) etc. and duplicates from other herbaria: Herbarium CLU (427), Herbarium PA (29), Herbarium Museum Caffi (25), Herbarium MOD (15), Herbarium Zirnich (8) etc. Before the publication of the TSB Herbarium dataset, querying the GBIF (2022) for lichen occurrences in Italy returned about 12,000 records, none of which came from an Italian herbarium, a number which is quite small if compared to those of several others European countries, for example, up to 2 million records for the UK. In the framework of project "Dryades" (Nimis et al. 2003), an effort to aggregate data from Italian lichen collections is being carried out, aiming at making data available online on ITALIC, the information system on Italian lichens (Nimis 2022). At the same time, records will be encoded in the Darwin Core standard (Wieczorek et al. 2012) and will be shared in the GBIF. In Italy, there are several important historical collections, mostly dating back to the “Golden Period” of Italian Lichenology in the second half of the 19" century (Nimis 2018), such as the herbaria of A.B. Massalongo (VER), F. Baglietto (MOD), M. Anzi (TO) and A. Jatta (NAP) (Tretiach and Valcuvia Passadore 1990). While efforts for their digitisation are foreseen, they will provide serious challenges, both as far as nomenclature The Italian lichens dataset from the TSB herbarium (University of Trieste) 3 and the georeferencing of localities are concerned. The latter is an especially challenging task, since localities are reported with obsolete toponyms or not reported at all. Thus, we prioritised 13 modern herbaria (with specimens collected after 1950): CLU, Fl, GDOR, GE, HLUC, ORO, SI, TO, TSB and the private herbaria of G. Gheza, J. Nascimbene, S. Ravera and W. von Brackel. The digitisation and publication of the TSB lichen collection is, thus, the first step towards making all the data from Italian lichen collections publicly available. Sampling methods Description: The Italian collection of the TSB lichen herbarium hosts specimens collected from all the 20 administrative regions of Italy. Sampling description: Specimens were mostly gathered in the course of field surveys devoted to the exploration of different areas of the country, where both common and rare species were collected. All specimens are stored in 15 cm x 10 cm paper envelopes. Label data were digitalised and stored in a MySQL database, which has been made publicly available on ITALIC, the information system on Italian lichens (Nimis 2022) and on GBIF (Martellos et al. 2022). Quality control: Specimens were collected and identified by experienced lichenologists (mostly by Nimis PL, Tretiach M and Muggia L), and sometimes revised by foreign specialists. Scientific names have been automatically aligned to the latest checklist of Italian lichens (Nimis 2016) by means of a customised version of the Florltaly name matching tool (Conti et al. 2021). The verbatim scientific name, i.e. the name originally written on the label, has been retained together with the currently accepted name. Since for almost all specimens geographical coordinates of the collection locality were missing, all specimens were georeferenced a posteriori using Google Maps, Google Earth and regional GIS maps. The georeferencing process followed the best practices by Chapman and Wieczorek (2020). Geographic coverage Description: The dataset contains specimens collected in all the 20 administrative regions of Italy: Abruzzo (1451), Basilicata (830), Calabria (1503), Campania (888), Emilia Romagna (842), Friuli Venezia Giulia (6235), Lazio (998), Liguria (567), Lombardia (193), Marche (1098), Molise (598), Piemonte (1904), Puglia (1415), Sardegna (2631), Sicilia (1595), Toscana (1930), Trentino Alto Adige (314), Umbria (97), Valle d’Aosta (148), andVeneto (532). Only for 27 specimens the locality of collection was not reported in the database. The distribution of specimens in the Italian territory is shown in Fig. 1. Coordinates: 35.317 and 49.668 Latitude; 6.284 and 18.809 Longitude. 4 Conti M et al wae Swhencheta SP we [100 ken 1. Figure 1. EES] Distribution map of TSB herbarium specimens in Italy; created with Leaflet (Agafonkin 2022). Taxonomic coverage Description: The specimens included in the dataset, according to the GBIF Taxonomic Backbone, belong to 44 orders, 118 families and 459 genera. The following families are represented: Abrothallaceae, Acarosporaceae, Adelococcaceae, Aphanopsidaceae, Arctomiaceae, Arthoniaceae, Arthopyreniaceae, Arthrorhaphidaceae, Baeomycetaceae, Biatorellaceae, Bionectriaceae, Caliciaceae, Candelariaceae, Cantharellaceae, Carbonicolaceae, Catillariaceae, Chrysotrichaceae, Cladoniaceae, Coccocarpiaceae, Coenogoniaceae, Collemataceae, Coniocybaceae, Cystocoleaceae, Dacampiaceae, Dactylosporaceae, Dermateaceae, Fuscideaceae, Gloeoheppiaceae, Gomphillaceae, Graphidaceae, Gyalectaceae, Haematommataceae, Helocarpaceae, Herpotrichiellaceae, Hygrophoraceae, Hymeneliaceae, Hysteriaceae, Icmadophilaceae, Koerberiaceae, Lecanographaceae, Lecanoraceae, Lecideaceae, Leprocaulaceae, Leptosilliaceae, Lichenoconiaceae, Lichenotheliaceae, Lichinaceae, Lichinodiaceae, Lobariaceae, Lopadiaceae, Massalongiaceae, Megasporaceae, Melaspileaceae, Microcaliciaceae, Monoblastiaceae, Mycocaliciaceae, Mycoporaceae, The Italian lichens dataset from the TSB herbarium (University of Trieste) 5 Mycosphaerellaceae, Mytilinidiaceae, Naetrocymbaceae, Nectriaceae, Nephromataceae, Niessliaceae, Nitschkiaceae, Ochrolechiaceae, Opegraphaceae, Ophioparmaceae, Pannariaceae, Parmeliaceae, Patellariaceae, Peltigeraceae, Peltulaceae, Pertusariaceae, Phaeococcomycetaceae, Phlyctidaceae, Physciaceae, Pilocarpaceae, Placynthiaceae, Pleomassariaceae, Pleosporaceae, Polycoccaceae, Porinaceae, Porpidiaceae, Protothelenellaceae, Psilolechiaceae, Psoraceae, Pycnoraceae, Pyrenidiaceae, Pyrenulaceae, Ramalinaceae, Ramboldiaceae, Rhizocarpaceae, Roccellaceae, Roccellographaceae, Sagiolechiaceae, Sarrameanaceae, Schaereriaceae, Scoliciosporaceae, Sphaerophoraceae, Sphinctrinaceae, Sporastatiaceae, Stereocaulaceae, Stictidaceae, Strangosporaceae, Strigulaceae, Teloschistaceae, Tephromelataceae, Teratosphaeriaceae, Thelenellaceae, Thelocarpaceae, Trapeliaceae, Trypetheliaceae, Tympanidaceae, Umbilicariaceae, Vahliellaceae, Verrucariaceae, Xanthopyreniaceae and Xylographaceae. Taxa and specimens numbers for each kingdom, phylum, class, order, family and genus are available in a spreadsheet (Suppl. material 1) and can be graphically visualised as a krona graph (Fig. 2; the interactive file is provided in Suppl. material 2). Incenae sects 0.3% (ii) Agaricomycetes 0.2% Ry Figure 2. EES Taxa distribution between classes, orders and families, created using krona graph tool (Ondov et al. 2011). Temporal coverage Notes: Specimens have been collected and recorded from 1810 to 2021. Occurrences per year are shown in Fig. 3. All specimens dated before 1984, the year in which the TSB collection was started, come from exsiccata collections or from exchanges with other Herbaria. The highest number of accessions was between 1987 and 2010, corresponding to the peak of lichenological exploration of Italy by researchers of the University of Trieste. 6 Conti M et al OCCURRENCES PER YEAR Occurrences 1825 1850 1875 1900 1925 1950 1975 2000 “® Occurrences Figure 3. EES] Lichens occurrences per year. Usage licence Usage licence: Creative Commons Public Domain Waiver (CC-Zero) IP rights notes: This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License. Data resources Data package title: TSB Lichen Herbarium Resource link: https://www.gbif.org/dataset/859c6946-f762-11e1-a439-00145eb45e9a Alternative identifiers: https://doi.org/10.15468/dl.t3kjr9 Number of data sets: 1 Data set name: TSB Lichen Herbarium Download URL: _https://Awww.gbif.org/occurrence/download?dataset_key=859c6946- f762-11e1-a439-00145eb45e9a Data format: Darwin Core Description: This is the largest modern lichen collection of speciemens collected within the administrative borders of Italy. It was started in 1984 and, to date, it includes ca. 26,000 samples, collected mainly by P.L. Nimis, M. Tretiach and L. Muggia (Martellos et al. 2022). The Italian lichens dataset from the TSB herbarium (University of Trieste) 7 Column label occurrencelD institutionID institutionCode basisOfRecord catalogNumber recordedBy occurrenceRemarks eventDate year continent country countryCode stateProvince locality minimumElevationInMeters maximumElevationInMeters decimalLatitude decimalLongitude geodeticDatum Column description An identifier for the Occurrence. An identifier for the institution having custody of the object. The acronym in use by the institution having custody of the object (TSB for all specimens). The specific nature of the data record (PreservedSpecimen for all specimens). An identifier for the record within the dataset or collection. A list of names of people, groups or organisations responsible for recording the original Occurrence. Comments or notes about the Occurrence. The date-time or interval during which an Event occurred. The four-digit year in which the Event occurred, according to the Common Era Calendar. The name of the continent in which the Location occurs (Europe for all specimens). The name of the country or major administrative unit in which the Location occurs (Italy for all specimens). The standard code for the country in which the Location occurs (IT for all specimens). The name of the next smaller administrative region than country (state, province, canton, department, region etc.) in which the Location occurs. Description of the place were the specimen was taken. The lower limit of the range of elevation in metres. The upper limit of the range of elevation in metres. The latitude in decimal degrees. Locations were georeferenced a posteriori according on the information written on the label. The longitude in decimal degrees. Locations were georeferenced a posteriori according on the information written on the label. The ellipsoid, geodetic datum or spatial reference system (SRS) upon which the geographic coordinates given in decimalLatitude and decimalLongitude are based (WGS84 for all specimens). coordinateUncertaintyInMetres The horizontal distance from the given decimalLatitude and decimalLongitude scientificName describing the smallest circle containing the whole of the Location. The full scientific name, with authorship. Assigned according to the Italian checklist of lichens. verbatimldentification typeStatus kingdom phylum class order family taxonRank licence type language Author contributions Conti M et al A string representing the taxonomic identification as it appeared in the original record. The nomenclatural type applied to the subject. The full scientific name of the kingdom in which the taxon is classified. The full scientific name of the phylum or division in which the taxon is classified. The full scientific name of the class in which the taxon is classified. The full scientific name of the order in which the taxon is classified. The full scientific name of the family in which the taxon is classified. The taxonomic rank of the most specific name in the scientificName. A legal document giving official permission to do something with the resource. The nature or genre of the resource (PhysicalObject for all specimens). Thelanguage of the resource. Writing—original draft preparation, M.C., S.M. and P.L.N.; writing—review and editing, P.L.N., S.M., T.M., M.L. and M.A. All authors have read and agreed to the published version of the manuscript. References ° Agafonkin V (2022) Leaflet. 1.8. URL: https://leafletis.com ° Albani Rocchetti G, Armstrong CG, Abeli T, Orsenigo S, Jasper C, Joly S, Bruneau A, Zytaruk M, Vamosi J (2021) Reversing extinction trends: new uses of (old) herbarium specimens to accelerate conservation action on threatened species. 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PLOS One 7 (1). https://doi.org/10.1371/JOURNAL.PONE.0029715 ° Willis C, Ellwood E, Primack R, Davis C, Pearson K, Gallinat A, Yost J, Nelson G, Mazer S, Rossington N, Sparks T, Soltis P (2017) Old plants, new tricks: Phenological research using herbarium specimens. Trends in Ecology & Evolution 32 (7): 531-546. https://doi.org/10.1016/J. TREE.2017.03.015 Supplementary materials Suppl. material 1: Taxa and specimens table EE Authors: Matteo Conti Data type: table Brief description: A table showing the total number of taxa and specimens in the dataset. Download file (34.46 kb) Suppl. material 2: Krona graph taxa and specimens [EI Authors: Matteo Conti Data type: html file Brief description: A Krona graph showing taxa and specimens in the herbarium. Download file (277.23 kb)