At the dated check, the references listed below either did not resolve in
Crossref or DataCite, or carried a retraction notice. Each one is shown with the
registry record that put it there.
The 35 references without a DOI — listed, not checked
no DOI — not checkedC. F. Culberson, "Journal of Chromatography." 72, "Improved conditions and new data for the identification of lichen products by a standardized thin-layer chromatographic method." 113 (1972)
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no DOI — not checkedA. Borhidi, "Norrlinia." 2, "Role of mapping the flora of Europe in nature conservation." 87 (1984)
no DOI — not checkedG. Carlin, "Graphis Scripta." 1, "On the use of chemical characters in lichen taxonomy." 72 (1987)
no DOI — not checkedT. Randlane, T. Tõrra, A. Saag, et al. "Bibliotheca Lichenologica." 100, "Key to European Usnea species." 419 (2009)
no DOI — not checkedT. Ahti, "Flora Neotropica." 78, "Cladoniaceae." 1 (2000)
no DOI — not checkedP. T. DePriest, "Cryptogamic Botany." 5, "Phylogenetic analyses of the variable ribosomal DNA of the Cladonia chlorophaea complex." 60 (1995)
no DOI — not checked"R: a language and environment for statistical computing." (2020)
no DOI — not checkedT. Ahti, "Annales Botanici Societatis Zoologicae-Botanicae Fennicae ‘Vanamo’." 32, "Taxonomic studies on reindeer lichens." 1 (1961)
no DOI — not checkedT. Ahti, S. Stenroos, R. Moberg, "Nordic Lichen Flora. Vol. 5: Cladoniaceae. Museum of Evolution." 117 (2013)
no DOI — not checkedZ. Bihari, G. Babolcsai, J. Bartholy, et al. "National Atlas of Hungary – Natural Environment." "Climate" 58 (2018)
no DOI — not checkedE. Farkas, L. Lőkös, K. Mázsa, "Kitaibelia." 3, "HPTLC-vizsgálatok magyarországi Umbilicaria zuzmófajokon [HPTLC analysis on Hungarian Umbilicaria species]." 349 (1998)
no DOI — not checkedE. Farkas, B. Biró, N. Varga, et al. 42, "Analysis of lichen secondary chemistry doubled the number of Cetrelia W.L. Culb. & C.F. Culb. species (Parmeliaceae, lichenised Ascomycota) in Hungary." 1 (2021)
no DOI — not checkedG. Gábris, M. Pécsi, F. Schweitzer, et al. "National Atlas of Hungary – Natural Environment." "Relief" 42 (2018)
no DOI — not checkedJ. R. F. Harrell, "Hmisc: Harrell Miscellaneous. R package version 4.7-2." (2022)
no DOI — not checkedD. L. Hawksworth, "Lichenology: Progress and Problems." "Lichen chemotaxonomy" 139 (1976)
no DOI — not checkedH. Holien and T. Tønsberg "Gunneria." 51, "Notes on Cladonia asahinae, C. conista and the C. grayi-group in Norway." 1 (1985)
no DOI — not checkedT. Hothorn and A. Zeileis "Journal of Machine Learning Research." 16, "Partykit: A Modular Toolkit for Recursive Partytioning in R." 3905 (2015)
no DOI — not checkedW. Jaklitsch, H.-O. Baral, R. Lücking, et al. "Syllabus of Plant Families – A. Engler's Syllabus der Pflanzenfamilien. Part. 1/2: Ascomycota." 322 (2016)
no DOI — not checkedK. Kocsis, "National Atlas of Hungary – Natural Environment." 183 (2018)
no DOI — not checkedA. Matwiejuk, "Acta Mycologica." 51, "The revision of specimens of the Cladonia pyxidata-chlorophaea group (lichenized Ascomycota) from northeastern Poland deposited in the herbarium collections of University in Bialystok." 1087 (2017)
no DOI — not checkedZ. Molnár, G. Király, G. Fekete, et al. "National Atlas of Hungary – Natural Environment." "Vegetation" 94 (2018)
no DOI — not checkedR. Nourish and W. A. Oliver "Lichenology: Progress and Problems." "Chemotaxonomic studies on the Cladonia chlorophaea-pyxidata complex and some allied species in Britain" 185 (1976)
no DOI — not checked"QGIS Version 3.28 Firenze. Geographic Information System." (2022)
no DOI — not checkedC. Roux, J.-Y. Monnat, D. Gonnet, et al. "Association française de lichénologie, Fontainebleau." "Catalogue des lichens et champignons lichénicoles de France métropolitaine." 1581 (2017)
no DOI — not checkedC. W. Smith, A. Aptroot, B. J. Coppins, et al. "The Lichens of Great Britain and Ireland." 1046 (2009)
no DOI — not checkedS. Stenroos, T. Ahti, K. Lohtander, et al. "Norrlinia." 21, "Suomen jäkäläopas [Lichen flora of Finland]." 1 (2011)
no DOI — not checkedS. Stenroos, V. Velmala, J. Pykälä, et al. "Norrlinia." 30, "Lichens of Finland." 1 (2016)
no DOI — not checkedS. Stenroos, R. Pino-Bodas, J. Hyvönen, et al. "Cladistics." 35, "Phylogeny of the family Cladoniaceae (Lecanoromycetes, Ascomycota) based on sequences of multiple loci." 351 (2018)
no DOI — not checkedB. Thiers, "New York Botanical Garden's Virtual Herbarium." "Index Herbariorum: A global Directory of public Herbaria and Associated Staff." (2023)
no DOI — not checkedJ. W. Thomson, "Journal of Japanese Botany." 51, "Cladonia asahinae sp. nov. from western North America." 360 (1976)
no DOI — not checked"Sixth national communication of Hungary to the United Nations framework convention on climate change." 358 (2013)
no DOI — not checkedK. Verseghy, "Magyarország zuzmóflórájának kézikönyve." 415 (1994)
no DOI — not checkedV. Wirth, "Flechtenflora." 552 (1980)
no DOI — not checkedV. Wirth, M. Hauck, M. Schultz, "Die Flechten Deutschlands." 1244 (2013)
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