A first phylogenetic assessment of Dictyonema s.lat. in southeastern North America reveals three new basidiolichens, described in honor of James D. Lawrey

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Three species of lichenized basidiomycetes in the Dictyonema clade from southeastern North America are described as new to science: Cyphellostereum georgianum, C. jamesianum and Dictyonema lawreyi, all with a crustose-filamentous growth form. Based on ITS sequences, the species form well-supported monophyletic clades in a phylogeny and are represented by at least two specimens each. They are also distinguishable by morphological and anatomical characters. These new findings emphasize the importance of lichenological studies in North America, especially in historically understudied taxonomic groups, such as basidiolichens. This study is dedicated to James D. Lawrey on the occasion of his 70th birthday.

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  • Dal Forno M. 2015. Evolution and Diversity of the basidiolichen clade Dictyonema (Agaricales: Hygrophoraceae). PhD Dissertation. 308 pp.

  • Dal Forno M. Lawrey J. D. Sikaroodi M. Bhattarai S. Gillevet P. M. Sulzbacher M. & Lücking R. 2013. Starting from scratch: evolution of the lichen thallus in the basidiolichen Dictyonema (Agaricales: Hygrophoraceae). Fungal Biology 117: 584–598.

  • Dal Forno M. Bungartz F. Yánez-Ayabaca A. Lücking R. & Lawrey J. D. 2017. High levels of endemism among Galapagos basidiolichens. Fungal Diversity 85: 45–73.

  • Esslinger T. L. 2018. A Cumulative Checklist for the Lichen-Forming Lichenicolous and Allied Fungi of the Continental United States and Canada Version 22. Opuscula Philolichenum 17: 6–268.

  • Katoh K. & Toh M 2005. MAFFT version 5: improvement in accuracy of multiple sequence alignment. Nucleic Acids Research 33: 511–518.

  • Kearse M. Moir R. Wilson A. Stones-Havas S. Cheung M. Sturrock S. Buxton S. Cooper A. Markowitz S. Duran C. Thierer T. Ashton B. Meintjes P. Drummond A. 2012. Geneious Basic: an integrated and extendable desktop software platform for the organization and analysis of sequence data. Bioinformatics 28: 1647–1649.

  • Lücking R. Dal Forno M. Lawrey J. D. Bungartz F. Holgado Rojas M. E. Hernández M. J E. Marcelli M. P. Moncada B. Morales E. A. Nelsen M. P. Paz E. Salcedo L. Spielmann A. A. Wilk K. Will-Wolf S. & Yánez A. 2013. Ten new species of lichenized Basidiomycota in the genera Dictyonema and Cora (Agaricales: Hygrophoraceae) with a key to all accepted genera and species in the Dictyonema clade. Phytotaxa 139: 1–38.

  • Lücking R. Dal Forno M. Sikaroodi M. Gillevet P. M. Bungartz F. Moncada B. Yánez-Ayabaca A. Chaves J. L. Coca L. F. & Lawrey J. D. 2014. A single macrolichen constitutes hundreds of unrecognized species. Proceedings of the National Academy of Sciences of the United States 111: 11091–11096.

  • Lücking R. Hodkinson B. P. & Leavitt S. D. 2017a (‘2016’). The 2016 classification of lichenized fungi in the Ascomycota and Basidiomycota–Approaching one thousand genera. The Bryologist 119: 361–416.

  • Lücking R. Dal Forno M. Moncada B. Coca L. F. Vargas-Mendoza l. Y. Aptroot A. Arias L. J. Besal B. Bungartz F. Cabrera-Amaya D. M. Cáceres M. E. S. Chaves J. L. Eliasaro S. Gutiérrez M. C. Hernández-M. J. E. Herrera-Campos M. A. Holgado-Rojas M. E. Jonitz H. Kukwa M. Lucheta F. Madriñán S. Marcelli M. P. Martins S. M. A. Mercado-Díaz J. A. Molina J. A. Morales E. A. Nelson P. R. Nugra F. Ortega F. Paredes T. Patiño A. L. Peláez-Pulido R. N. Pérez-Pérez R. E. Perlmutter G. B. Rivas-Plata M. E. Robayo J. Rodríguez C. Simijaca D. F. Soto-Medina E. Spielmann A. A. Suárez-Corredor A. Torres J. M. Vargas C. A. Yánez-Ayabaca A. Weerakoon G. Wilk. K. Celis-Pacheco M. Diazgranados M. Brokamp G. Borsch T. Gillevet P. M. Sikaroodi M. & Lawrey J. D. 2017b. Turbo-taxonomy to assemble a megadiverse lichen genus: seventy new species of Cora (Basidiomycota: Agaricales: Hygrophoraceae) honouring David Leslie Hawksworth’s seventieth birthday. Fungal Diversity 84: 139–207.

  • Lawrey J. D. Lücking R. Sipman H. J. M. Chaves J. L. Redhead S. A. Bungartz F. Sikaroodi M. & Gillevet P. M. 2009. High concentration of basidiolichens in a single family of agaricoid mushrooms (Basidiomycota: Agaricales: Hygrophoraceae). Mycological Research: 113: 1154–1171.

  • Lodge D. J. Padamsee M. Matheny P. B. Aime M. C. Cantrell S. A. Boertmann D. M. Kovalenko A. Moncalvo J.-M. Vilgalys R. Vizzini A. Larsson E. Lücking R. Griffith G. W. Smith M. Norvell L. Desjardin D. E. Redhead S. Ovrebo C. L. Lickey E. B. Ercole E. Hughes K. W. Courtecuisse R. Young A. Binder M. Minnis A. Lindner D. L. Ortiz-Santana B. Haight J. Læssøe T. Baroni T. J. Geml J. & Hattori T. 2014. Molecular phylogeny morphology pigment chemistry and ecology in Hygrophoraceae (Agaricales). Fungal Diversity 64: 1–99.

  • Miller M.A. Pfeiffer W. & Schwartz T. 2010. ‘Creating the CIPRES Science Gateway for inference of large phylogenetic trees’ in Proceedings of the Gateway Computing Environments Workshop (GCE) 14 Nov. 2010 New Orleans LA pp 1–8.

  • Parmasto E. 1978. The genus Dictyonema (‘Thelephorolichenes’). Nova Hedwigia 29: 99–144.

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