Abstract
In the frame of a revision of the Fomitiporia species with pileate basidiomata in the New World, several collections originating from Andean, high elevation forests of Argentina were found to represent a terminal clade in multilocus phylogenetic inferences (including nuclear ribosomal partial LSU and ITS-5.8S, partial tef1-α and RPB2 genes). These collections also represent a singular morphotype within Fomitiporia, characterized by mostly pileate basidiomata, with a soft corky consistency, roughly sulcate pilei, a “duplex” context with a thin black line, and dextrinoid basidiospores, averaging 5.9 × 5.3 μm. It also has a well-marked autecology, occurring on shrubby trees in high elevation forests along the Andean range. A search in the literature for a name pointed toward Phellinus baccharidis, despite the fact that this species was repeatedly described with non-dextrinoid basidiospores. Examination of the type of P. baccharidis confirmed the main morphological features as previously described, but for the reaction of basidiospores in Melzer’s reagent, which was found to be strongly positive (dextrinoid), and an overall similarity with our own specimens; hence, the new combination Fomitiporia baccharidis is proposed. The species is redescribed and illustrated. It is so far known from Argentina and Ecuador. Its phylogenetic relationships with the South American Fomitiporia are briefly discussed.
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Acknowledgments
Gerardo Robledo, fellow and researcher of the National Research Council of Argentina, acknowledges the financial support of CONICET throughout PIP 6195/05. Gerardo Robledo is also grateful for the technical equipment funded by Idea Wild. Mario Amalfi acknowledges the financial support received from UCL through a Fond Spécial de la Recherche scholarship. Cony Decock gratefully acknowledges the financial support received from the Belgian State—Belgian Federal Science Policy (contract BCCM C3/10/003), the FNRS / FRFC (convention FRFC 2.4544.10), and the CIUF/CUD through a PIC program “reinforcement of the fungal expertise in Ecuador via case studies of fungal plants interactions in selected ecosystems and the development of biotechnology-oriented fungal resource centers”, that allowed fungal diversity studies in Ecuador. Cony Decock also thanks Dr. Anne Corval, Director of the “CNRS Guyane”, for granting authorization and facilities for field research at the Nouragues “Inselberg” CNRS forest plots and CNRS staff members in Cayenne and at the Nouragues “Inselberg” camp (namely, Mrs Dorothée Deslignes, and Mr. Philippe Gaucher, Patrick Châtelet, Gilles Peroz and Wemo Betian). The authors, collectively, gratefully acknowledge the financial support received from the Argentinean SECYT (BE06/01) and the Belgian FNRS (V4/325S—CB/DeM) via their bilateral cooperation program. Stéphanie Huret is warmly thanked for her help with the sequencing program.
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Mario Amalfi and Gerardo Robledo contributed equally to the research and should be considered co-first authors.
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Amalfi, M., Robledo, G. & Decock, C. Fomitiporia baccharidis comb. nov., a little known species from high elevation Andean forests and its affinities within the neotropical Fomitiporia lineages. Mycol Progress 13, 995 (2014). https://doi.org/10.1007/s11557-014-0995-x
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DOI: https://doi.org/10.1007/s11557-014-0995-x