@article {5660, title = {Four new and two resurrected species of Bacidina from Sweden, with notes and a preliminary key to the known Scandinavian species}, journal = {Nordic Journal of Botany}, year = {2023}, month = {Apr-10-2023}, pages = {e03846}, issn = {0107-055X, 1756-1051}, doi = {10.1111/njb.03846}, url = {http://dx.doi.org/10.1111/njb.03846}, author = {Ekman, S.} } @article {5024, title = {Most species of Lepraria and Leproloma form a monophyletic group closely related to Stereocaulon}, journal = {Mycological Research}, volume = {106}, year = {2002}, pages = {1262-1276}, issn = {09537562}, doi = {10.1017/S0953756202006718}, url = {http://linkinghub.elsevier.com/retrieve/pii/S0953756208611028}, author = {Ekman, S. and T{\o}nsberg, T.} } @article {4612, title = {Vahliellaceae, a new family of cyanobacterial lichens (Peltigerales, Ascomycetes)}, journal = {Lichenologist}, volume = {43}, year = {2011}, pages = {67-72}, issn = {0024-2829}, doi = {10.1017/S0024282910000642}, url = {http://www.journals.cambridge.org/abstract_S0024282910000642}, author = {Wedin, M. and J{\o}rgensen, P.M. and Ekman, S.} } @article {4515, title = {The Devil in the Details: interactions between the Branch-Length Prior and Likelihood model affect node support and branch lengths in the phylogeny of the Psoraceae}, journal = {Systematic Biology}, volume = {60}, year = {2011}, pages = {541-561}, issn = {1063-5157}, doi = {10.1093/sysbio/syr022}, url = {https://academic.oup.com/sysbio/article-lookup/doi/10.1093/sysbio/syr022}, author = {Ekman, S. and Blaalid, R.} } @article {4294, title = {Outline of phylogeny and character evolution in Rhizocarpon (Rhizocarpaceae, lichenized Ascomycota) based on nuclear ITS and mitochondrial SSU ribosomal DNA sequences}, journal = {Biological Journal of the Linnean Society}, volume = {77}, year = {2002}, pages = {535-546}, doi = {10.1046/j.1095-8312.2002.00127.x}, url = {https://academic.oup.com/biolinnean/article-lookup/doi/10.1046/j.1095-8312.2002.00127.x}, author = {Ihlen, P.G. and Ekman, S.} } @article {4265, title = {Molecular phylogeny of the genus Lecania (Ramalinaceae, lichenized Ascomycota)}, journal = {Mycological Research}, volume = {111}, year = {2007}, pages = {581-591}, issn = {09537562}, doi = {10.1016/j.mycres.2007.03.001}, url = {http://linkinghub.elsevier.com/retrieve/pii/S0953756207000585}, author = {Reese N{\ae}sborg, R. and Ekman, S. and Tibell, L.} } @article {4255, title = {Molecular evidence supports the distinction between Xanthoria parietina and X. aureola (Teloschistaceae, lichenized Ascomycota).}, journal = {Mycological Research}, volume = {109}, year = {2005}, pages = {187-199}, abstract = {

This study aims to clarify taxonomic relationships within the current concept of Xanthoria parietina in northern Europe. For comparison, X. calcicola was also included in the study. Morphological as well as molecular data were utilized. Morphology indicated the presence of three species, Xanthoria parietina, X. calcicola, and X. aureola, the latter of which is resurrected here from synonymy. The most important separating characters involve colour and thickness of the thallus, lobe width, morphology of laminar structures, and the texture of the upper surface. X. aureola, as recognized here, mostly occurs on seashore rocks. Part of the IGS region as well as the complete ITS were sequenced in 70 individual thalli representing ten geographical regions in Europe. In total, 19 different IGS haplotypes and 20 different ITS haplotypes were present in the data set. Owing to indications of possible recombination between the IGS and the ITS, the two data sets were analyzed separately. Haplotype networks were estimated, both of which indicate that X. parietina is distinct from X. aureola and X. calcicola. In our sample, the two latter do not share haplotypes, but are only separated by a few mutational steps.

}, keywords = {Ascomycota, Base Sequence, DNA, Fungal, DNA, Ribosomal, DNA, Ribosomal Spacer, Haplotypes, Lichens, Molecular Sequence Data, Mycological Typing Techniques, Phylogeny, Recombination, Genetic, Sequence Analysis, DNA, Spores, Fungal}, issn = {0953-7562}, doi = {https://doi.org/10.1017/S0953756204001790}, author = {Lindblom, L. and Ekman, S.} } @article {4204, title = {Disintegration of the Micareaceae (lichenized Ascomycota): a molecular phylogeny based on mitochondrial rDNA sequences.}, journal = {Mycological Research}, volume = {109}, year = {2005}, pages = {21-30}, abstract = {

The phylogeny of the family Micareaceae and the genus Micarea was studied using mitochondrial small subunit ribosomal DNA sequences. Phylogenetic reconstructions were performed using Bayesian MCMC tree sampling and a maximum likelihood approach. The Micareaceae in its current sense is highly heterogeneous, and Helocarpon, Psilolechia, and Scutula, all thought to be close relatives of Micarea, are shown to be only distantly related. The genus Micarea is paraphyletic unless the entire Pilocarpaceae and Ectolechiaceae are included, as also indicated by an expected likelihood weights test. It is suggested that the Micareaceae is reduced to synonymy with the Pilocarpaceae, which also includes the Ectolechiaceae, and that Micarea may have to be divided into a series of smaller genera in the future. Micarea species with a \&$\#$39;non-micareoid\&$\#$39; photobiont group with Psora and the Ramalinaceae, whereas Micarea intrusa appears to belong in Scoliciosporum. Three species fall inside the paraphyletic Micarea: Szczawinskia tsugae, Catillaria contristans, and Fellhaneropsis vezdae. Tropical foliicolous taxa are nested within groups of mainly temperate and arctic-alpine distribution. A \&$\#$39;micareoid\&$\#$39; photobiont appears to be plesiomorphic in the Pilocarpaceae but has been lost a few times.

}, keywords = {Ascomycota, DNA, Fungal, DNA, Mitochondrial, DNA, Ribosomal, Evolution, Molecular, Lichens, Phylogeny, Sequence Analysis, DNA}, issn = {0953-7562}, url = {http://www.reelab.net/phylografter/study/download/study_file.file.aff47904dbea7823.3737355f7064662e706466.pdf}, author = {Andersen, H.L. and Ekman, S.} } @article {4125, title = {Slippery when wet: phylogeny and character evolution in the gelatinous cyanobacterial lichens (Peltigerales, Ascomycetes).}, journal = {Molecular and Phylogenetic Evolution}, volume = {53}, year = {2009}, pages = {862-871}, abstract = {

Many lichen fungi form symbioses with filamentous Nostoc cyanobacteria, which cause the lichen to swell and become extremely gelatinous when moist. Within the Lecanoromycetes, such gelatinous lichens are today mainly classified in the Collemataceae (Peltigerales, Ascomycota). We performed Bayesian MCMC, maximum likelihood, and maximum parsimony analyses of three independent markers (mtSSU rDNA, nuLSU rDNA, and RPB1), to improve our understanding of the phylogeny and classification in the Peltigerales, as well as the evolution of morphological characters that have been used for classification purposes in this group. The Collemataceae and the non-gelatinous Pannariaceae are paraphyletic but can be re-circumscribed as monophyletic if Leciophysma, Physma, Ramalodium and Staurolemma are transferred to the Pannariaceae. The gelatinous taxa transferred to the Pannariaceae deviate from other Collemataceae in having simple ascospores, and several also have a ring-shaped exciple as in other Pannariaceae, rather than the disc-shaped exciple found in the typical Collemataceae. Both Collema and Leptogium are non-monophyletic. The re-circumscribed Collemataceae shares a distinct ascus type with the sister group Placynthiaceae and the Coccocarpiaceae, whereas Pannariaceae includes a variety of structures. All Pannariaceae have one-celled ascospores, whereas all Collemataceae have two- or multi-celled spores. Reconstructions of the number of character state transformations in exciple structure, thallus gelatinosity, and ascus apex structure indicate that the number of transformations is distinctly higher than the minimum possible. Most state transformations in the exciple took place from a ring-shaped to a disc-shaped exciple. Depending on the reconstruction method, most or all transformations in thallus structure took place from a non-gelatinous to a gelatinous thallus. Gains and losses of internal structures in the ascus apex account for all or a vast majority of the number of transformations in the ascus, whereas direct transformations between asci with internal structures appear to have been rare.

}, issn = {1095-9513}, doi = {10.1016/j.ympev.2009.08.013}, author = {Wedin, M. and Wiklund, E. and J{\o}rgensen, P.M. and Ekman, S.} } @mastersthesis {4055, title = {The corticolous and lignicolous species of Bacidia and Bacidina in North America}, volume = {PhD}, year = {1996}, pages = {148 pp.}, url = { http://lup.lub.lu.se/record/17734}, author = {Ekman, S.} } @article {3220, title = {Contributions to an epiphytic lichen flora of northwest North America: I. Eight new species from British Columbia inland rain forests}, journal = {Bryologist}, volume = {112}, year = {2009}, pages = {109-137}, issn = {0007-2745}, doi = {10.1639/0007-2745-112.1.109}, url = {http://www.bioone.org/doi/abs/10.1639/0007-2745-112.1.109}, author = {Spribille, T. and Bj{\"o}rk, C.R. and Ekman, S. and Elix, J.A. and Goward, T. and Printzen, C. and T{\o}nsberg, T. and Wheeler, T.} } @article {3032, title = {New records, range extensions and nomenclatural innovations for lichens and lichenicolous fungi from Alaska, USA}, journal = {Herzogia}, volume = {25}, year = {2012}, pages = {177-210}, url = {http://www.blam-hp.eu/Herzogia\%2025\%20Heft\%202/H25-2-Dillman-abstr.pdf}, author = {Dillman, K.L. and Ahti, T. and Bj{\"o}rk, C.R. and Clerc, P. and Ekman, S. and Goward, T. and Hafellner, J. and P{\'e}rez-Ortega, S. and Printzen, C. and Savic, S. and Schultz, M. and Svensson, M. and Thor, G. and T{\o}nsberg, T. and Vitikainen, O. and Westberg, M. and Spribille, T.} } @article {2857, title = {Phylogeny and character evolution in the jelly fungi (Tremellomycetes, Basidiomycota, Fungi)}, journal = {Molecular Phylogenetics and Evolution}, volume = {61}, year = {2011}, pages = {12-28}, issn = {10557903}, doi = {10.1016/j.ympev.2011.05.014}, url = {http://linkinghub.elsevier.com/retrieve/pii/S1055790311002569}, author = {Millanes, A.M. and Diederich, P. and Ekman, S. and Wedin, M.} } @article {2844, title = {Bacidia coprodes{\textemdash}resurrecting a misinterpreted species}, journal = {Lichenologist}, volume = {39}, year = {2007}, pages = {251-257}, issn = {0024-2829}, doi = {10.1017/S0024282907006779}, url = {http://www.journals.cambridge.org/abstract_S0024282907006779}, author = {Llop, E. and Ekman, S.} } @article {2736, title = {Molecular phylogeny of the Bacidiaceae (Lecanorales, lichenized Ascomycota)}, journal = {Mycological Research}, volume = {105}, year = {2001}, pages = {783-797}, issn = {09537562}, doi = {10.1017/S0953756201004269}, url = {http://linkinghub.elsevier.com/retrieve/pii/S0953756208619280}, author = {Ekman, S.} } @article {2735, title = {The taxonomy of Bacidia fraxinea and its relationship to B. rubella}, journal = {Annales Botanici Fennici}, volume = {30}, year = {1993}, pages = {77-82}, author = {Ekman, S. and Nordin, A.} } @article {2734, title = {Disintegration of the Micareaceae (lichenized Ascomycota): a molecular phylogeny based on mitochondrial rDNA sequences}, journal = {Mycological Research}, volume = {109}, year = {2005}, pages = {21-30}, issn = {09537562}, doi = {10.1017/S0953756204001625}, url = {http://linkinghub.elsevier.com/retrieve/pii/S0953756208613702}, author = {Andersen, H.L. and Ekman, S.} } @article {2154, title = {Contributions to an epiphytic lichen flora of northwest North America: I. Eight new species from British Columbia inland rain forests}, journal = {Bryologist}, volume = {112}, year = {2009}, pages = {109 - 137}, doi = {10.1639/0007-2745-112.1.109}, author = {Spribille, T. and Bj{\"o}rk, C.R. and Ekman, S. and Elix, J.A. and Goward, T. and Printzen, C. and T{\o}nsberg, T. and Wheeler, T.} }