Terfezia disappears from the American truffle mycota as two new genera and Mattirolomyces species emerge

Abstract

Reexamination and molecular phylogenetic analyses of American Terfezia species and Mattirolomyces tiffanyae revealed that their generic assignments were wrong. Therefore we here propose these combinations: Mattirolomyces spinosus comb. nov. (≡ Terfezia spinosa), Stouffera longii gen. & comb. nov. (≡ Terfezia longii) and Temperantia tiffanyae gen. & comb. nov. (≡ Mattirolomyces tiffanyae). In addition we describe a new species, Mattirolomyces mexicanus spec. nov. All species belong to the Pezizaceae. Based on these results Terfezia is not known from North America, Mattirolomyces is represented by two species and two new monotypic genera are present.

• Ascomycota
• ascospore
• biogeography
• Pezizaceae
• Pezizales
• scanning electron microscopy
• Stouffera
• Temperantia
• truffle

This study was supported by the Hungarian Research Fund (OTKA K72776) and the Mycological Society of America (Martin-Baker Award to Kovács). A part of the work was conducted during Kovács’s stay at Oregon State University, Corvallis, with a Fulbright research grant. Trappe was supported in part by the U.S. Forest Service, Pacific Northwest Research Station, Corvallis, Oregon, and National Science Foundation Grant 0641297. Alsheikh’s research was supported by a scholarship from the Kuwait Institute for Scientific Research. Hansen was supported in part by the Farlow Herbarium, Harvard University, and National Science Foundation Grant DEB-0315940. Drs Éfren Cázares, Gonzalo Guevara and Jesús Garcia generously provided the Mexican collections for our examination and Dr Chester Leathers the Arizona collection. We thank Bruno Manara for helping with the Latin description of Temperantia. We thank these herbaria for lending and/or accessioning specimens: Botanische Staatssammlung, Munich (M), Charles University, Prague (PRC), Cornell University (CUP), Harvard University (FH), Instituto Politécnico Nacional, Mexico (ENCB), Instituto Tecnológico de Ciudad Victoria, Mexico (ITCV), Iowa State University (ISC), New York Botanical Garden (NY), Oregon State University Mycological Collections (OSC), University of Michigan (MICH), University of Torino (TO), Uppsala University (UPS), U.S. National Fungus Collections (BPI).