Biodiversity Data Journal 7: e36252 doi: 10.3897/BDJ.7.e36252 Data Paper OLICH: A reference library of DNA barcodes for Nordic lichens Gunnhild Marthinsen‡‡, Siri Rui , Einar Timdal‡ ‡ Natural History Museum, University of Oslo, Oslo, Norway Corresponding author: Gunnhild Marthinsen (
[email protected]) Academic editor: Andreas Beck Received: 16 May 2019 | Accepted: 31 Jul 2019 | Published: 19 Aug 2019 Citation: Marthinsen G, Rui S, Timdal E (2019) OLICH: A reference library of DNA barcodes for Nordic lichens. Biodiversity Data Journal 7: e36252. https://doi.org/10.3897/BDJ.7.e36252 Abstract Background DNA barcodes are increasingly being used for species identification amongst the lichenised fungi. This paper presents a dataset aiming to provide an authoritative DNA barcode sequence library for a wide array of Nordic lichens. New information We present 1324 DNA barcode sequences (nrITS) for 507 species in 175 genera and 25 orders. Thirty-eight species are new to GenBank and, for 25 additional species, ITS sequences are here presented for the first time. The dataset covers 20–21% of the Nordic lichenised species. Barcode gap analyses are given and discussed for the three genera Cladonia, Ramalina and Umbilicaria. The new combination Bryobilimbia fissuriseda (Poelt) Timdal, Marthinsen & Rui is proposed for Mycobilimbia fissuriseda and Nordic material of the species, currently referred to as Pseudocyphellaria crocata and Psoroma tenue ssp. boreale, are shown to belong in Pseudocyphellaria citrina and Psoroma cinnamomeum, respectively. © Marthinsen G 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.