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Elmerina and Protomerulius: novelties from Brazil based in morphological and molecular analyses

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The poroid species of Auriculariales have been placed in Aporpium, Elmerina, Protodaedalea and Protomerulius and include resupinate, effused-reflexed or pileate basidiomata, 4-celled basidia and globose, ovoid to allantoid basidiospores. According to recent DNA-based phylogenetic studies, those genera have good support in Auriculariales, but many species without phylogenetic treatment remain in uncertain taxonomic position, especially from the Neotropics. In the present paper, specimens with poroid hymenophore and septate basidia were collected in Brazil and morphological and DNA analyses, based in ITS and LSU regions, evidenced three new species (Elmerina brasiliensis, E. santanaensis and Protomerulis pedratalhadensis) and three new combinations (E. minipora, E. strigosa and E. obtusispora). Descriptions and illustrations of the new species, the new combinations and a comparative table of species of the genera are provided.

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Data availability

Specimens voucher are deposited in URM and SP Herbariums. The DNA sequences obtained from this study are deposited in the GenBank.


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We would like to thank Pós-Graduação em Biologia de Fungos (UFPE, Brazil) for support, CNPq [PQ 307601/2015-3, CNPQ/ICMBio (421241/2017-9)], FACEPE (APQ 0375-2.03/15 and BFP-0207-2.03/20) and FAPESP (2016/10031-9) for financing this research. The authors would like to thank SP herbarium and Dr. Adriana de Mello Gugliotta for the loan of specimens, Virton Rodrigo Oliveira for the donation of URM93459 and the anonymous reviewers for their contributions.


Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco, (APQ 0375-2.03/15 and BFP-0207-2.03/20) Conselho Nacional de Desenvolvimento Científico e Tecnológico, [PQ 307601/2015-3, CNPQ/ICMBio (421241/2017-9)], Fundação de Amparo à Pesquisa do Estado de São Paulo, (2016/10031-9).

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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by RLMA and MCW. The manuscript was written by all authors. All authors read and approved the final manuscript. Tatiana B. Gibertoni supervised this research.

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Correspondence to Renato Lúcio Mendes-Alvarenga.

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Online Appendix 1. The alignment used to produce phylogeny of nrITS+LSU dataset.

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Mendes-Alvarenga, R.L., Westphalen, M.C. & Gibertoni, T.B. Elmerina and Protomerulius: novelties from Brazil based in morphological and molecular analyses. Plant Syst Evol 309, 39 (2023).

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