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P. Brandon Matheny

Associate Professor

Research Interest

Fungal systematics, evolution, historical biogeography


2003 PhD, University of Washington


My group’s research interests include fungal systematics, evolution, historical biogeography, and taxonomy of mushroom-forming fungi.

We use natural history collections of mushrooms to investigate their systematic and evolutionary relationships. Sequence data are produced to reconstruct phylogenies, which are used to test classifications, morphological species concepts, and history of diversification patterns of mushroom-forming fungi. We are also interested in the evolution of the ectomycorrhizal (ECM) symbiosis, an important ecological feature, and how this trait has influenced biogeographic distributions and speciation patterns of the fungi involved. Research in our lab also focuses on the identification and taxonomic revision of selected groups of Agaricales. Our current fieldwork emphasizes the accumulation of temperate North American Agaricales and Australian Inocybaceae and closely related taxa. Our lab webpage is currently under construction but soon will be able to provide details on more specific projects, so please stay tuned.


Visit Google Scholar for more publications. (Since 2011)

  • Sánchez-García M, Aime MC, Smith ME, Matheny PB, Henkel TW. A new genus of ectomycorrhizal fungi (Guyanagarika, Agaricales) from the neotropics. Fungal Biology, in press.
  • Deepna Latha KP, Manimohan P, Matheny PB (2016) A new species of Inocybe representing the Nothocybe lineage. Phytotaxa 267: 040-050.
  • Adamčík S, Looney BP, Birkebak JM, Jančovičová S, Adamčíková K, Marhold K, Matheny PB (2016) Napthalene smelling Hodophilus (H. foetens group, Agaricomycotina) in North America. Botany, in press.
  • Birkebak JM, Adamčík S, Matheny PB (2016) Multilocus phylogenetic reconstruction of the Clavariaceae (Agaricales) reveals polyphyly of the agaricoid members. Mycologia, in press.
  • Pradeep CK, Vrinda KB, Varghese S, Korotkin HB, Matheny PB (2016) New and noteworthy species of Inocybe (Agaricales) from tropical India. Mycological Progress 15: article 24.
  • Looney BP, Ryberg M, Hampe F, Sánchez-García M, Matheny PB (2016) Into and out of the tropics: global diversification patterns in a hyperdiverse clade of ectomycorrhizal fungi. Molecular Ecology 25: 630-647 (cover issue).
  • Peay KG, Matheny PB (2016) The biogeography of ectomycorrhizal fungi – a history of life in the subterranean. In Molecular Mycorrhizal Symbiosis (ed.) Martin F. John Wiley & Sons, Inc.: 341-362.
  • Vellinga EC, Kuyper TW, Ammirati J, Desjardin DE, Halling RE, Justo A, Læssøe T, Lebel T, Lodge DJ, Matheny PB, Methven AS, Moreau P-A, Mueller GM, Noordeloos ME, Nuytinck J, Ovrebo CL, Verbeken A (2015) Six simple guidelines for introducing new genera of fungi. IMA Fungus 6(2): (65)-(68).
  • Kuo M, Matheny PB (2015) Contemporary documentation of the rare eastern North American species Inocybe insignis (Inocybaceae, Agaricales). MycoKeys 11: 23-31.
  • Horak E, Matheny PB, Desjardin DE, Soytong K (2015) The genus Inocybe (Inocybaceae, Agaricales, Basidiomycota) in Thailand and Malaysia. Phytotaxa 230 (3): 201-238.
  • Harrower E, Bougher NL, Winterbottom C, Henkel TW, Horak E, Matheny PB (2015) New species in Cortinarius section Cortinarius (Agaricales) from the Americas and Australasia. MycoKeys 11: 1-21.
  • Harrower E, Bougher NL, Henkel TW, Horak E, Matheny PB (2015) Long-distance dispersal and speciation of Cortinarius sect. Cortinarius in Australasia and the Americas. Mycologia 107: 697-709 (cover issue).
  • Matheny PB, Moreau P-A, Vizzini A, Harrower E, de Haan A, Contu M, Curti M (2015) Crassisporium and Romagnesiella, two new genera of dark-spored Agaricales. Systematics and Biodiversity 13: 28-41.
  • Hofstetter V, Redhead SA, Kauff F, Moncalvo J-M, Matheny PB, Vilgalys R (2014) Taxonomic revision and examination of ecological transitions of the Lyophyllaceae (Basidiomycota, Agaricales) based on a multigene phylogeny. Cryptogamie Mycologie 35: 399-425.
  • Sánchez-García M, Matheny PB, Palfner G, Lodge DJ (2014) Deconstructing the Tricholomataceae (Agaricales) and introduction of the new genera Albomagister, Corneriella, Pogonoloma and Pseudotricholoma. Taxon 63: 993-1007.
  • Braaten CC, Matheny PB, Viess DL, Wood MG, Williams J, Bougher NL (2014) Two new species of Inocybe from Australia and North America than include novel secotioid forms. Botany 92: 9-22.
  • Lodge DL, Padamsee M, Matheny PB, Aime MC, Cantrell SA, Boertmann D, Kovalenko A, Vizzini A, Dentinger B, Kirk P, Ainsworth M, Moncalvo J-M, Vilgalys R, Larsson E, Lücking R, Griffith G, Smith M, Norvell LL, Desjardin DE, Redhead SA, Ovrebo CL, Lickey E, Ercole E, Hughes KW, Courtecuisse R, Young A, Binder M, Minnis A, Lindner DL, Ortiz-Sanatan B, Haight J, Læssøe T, Baroni TJ, Geml J, Hattori T (2014) Molecular phyologeny, morphology, pigment chemistry and ecology in Hygrophoraceae (Agaricales). Fungal Diversity 64: 1-99.
  • Ramírez-Cruz V, Guzmán G, Villalobos-Arámbula AR, Rodríguez A, Matheny PB, Sánchez-García M, Guzmán-Davalos L (2013) Phylogenetic inference of the psychedelic mushroom genus Psilocybe sensu lato. Botany 91: 573-591.
  • Kõljalg U, Nilsson H, Abarenkov K, Tedersoo L, Taylor FS, Bahram M, Bates ST, Bruns TT, Bengtsson-Palme J, Callaghan TM, Doughas B, Drenkham T, Eberhardt U. Dueñas M, Grebenc T, Griffith GW, Hartmann M, Kirk PM, Kohout P, Larsson E, Lindahl BD, Lücking R, Martín MP, Matheny PB, Nguyen H, Niskanen T, Oja J, Peay KG, Peintner U, Peterson M, Põldmaa K, Saag L, Saar I, Schüßler A, Senés C, Smith ME, Suija A, Taylar DL, Telleria MT, Weiß M, Larsson KH (2013) Towards a unified paradigm for sequence-based identification of Fungi. Molecular Ecology 22: 5271-5277.
  • Kosentka P, Sprague SL, Ryberg M, Gartz J, May AL, Campagna SR, Matheny PB (2013) Evolution of muscarine and psilocybin in a family of mushroom-forming fungi. PLoS ONE 8(5): e64646.
  • Looney BP, Birkebak JM, Matheny PB (2013) A molecular phylogeny of the genus Auricularia with an emphasis on species from the southeastern United States. North American Fungi 8: 1-25.
  • Birkebak JM, Mayor JR, Ryberg M, Matheny PB (2013) A systematic, morphological, and ecological overview of the Clavariaceae (Agaricales). Mycologia 105: 896-911.
  • Kropp BR, Matheny PB, Hutchison LJ (2013) Inocybe section Rimosae in Utah: phylogenetic affinities and new species. Mycologia 105: 728-747.
  • Ammirati JF, Hughes KW, Liimatainen K, Niskanen T, Matheny PB (2013) Cortinarius hesleri from eastern North America and related species from Europe and western North America. Botany 91: 91-98.
  • Sánchez-García M, Cifuentes-Blanco J, Matheny PB (2013) Revisión taxonómica del género Melanoleuca en México y descripción de especies nuevas. Revista Mexicana de Biodiversidad 84 (Suplemento-Micologia): S111-S127. Invited paper.
  • Matheny PB, Norvell LL, Giles EC (2013) A common new species of Inocybe in the Pacific Northwest with a diagnostic PDAB reaction. Mycologia 105: 436-446.
  • Kennedy PG, Matheny PB, Ryberg M, Henkel TW, Uehling J, Smith ME (2012) Scaling up: examining the macroecology of ectomycorrhizal fungi. Molecular Ecology 21: 4151-4154.
  • Bougher NL, Matheny PB, Gates GM (2012) Five new species and records of Inocybe (Agaricales) from temperate and tropical Australia. Nuytsia 22: 57-74.
  • Ryberg M, Matheny PB (2012) Asynchronous origins of ectomycorrhizal clades of Agaricales. Proceedings of the Royal Society B 279: 2003-2011.
  • Matheny PB, Aime MC, Smith ME, Henkel TW (2012) New species and reports of Inocybe (Agaricales) from Guyana. Kurtziana (special issue) 37: 23-39. Invited paper.
  • Matheny PB, Pradeep CK, Vrinda KB, Varghese SP (2012) Auritella foveata, a new species of Inocybaceae (Agaricales) from tropical India. Kew Bulletin 67: 119-125.
  • Baroni TJ, Matheny PB (2011) A re-evaluation of gasteroid and cyphelloid species of Entolomataceae from eastern North America. Harvard Papers in Botany 16: 293-310.
  • Bougher NL, Matheny PB (2011) Two species of Inocybe introduced into Western Australia. Nuytsia 21: 139-148.
  • Ryberg M, Nilsson RH, Matheny PB (2011) DivBayes and SubT: exploring species diversification using Bayesian statistics. Bioinformatics 27: 2439-2440
  • Ryberg M, Matheny PB (2011) Dealing with incomplete taxon sampling and diversification of a large clade of mushroom-forming fungi. Evolution 65: 1862-1878.
  • Birkebak JM, Vellinga EC, Franco-Molano AE, Wood MG, Matheny PB (2011) Lepiota maculans, an unusual mushroom rediscovered after 105 years. Southeastern Naturalist 10: 267-274.

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