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Two new species of Deconica (Agaricales, Basidiomycota) from Australia and Mexico

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Abstract

Two new species of Deconica with chrysocystidia are described from Australia and Mexico. Deconica milvispora, from a warm temperate rainforest in Queensland, Australia, is characterized by rhomboid basidiospores with nodulose angles not observed in any member of the genus until now. Deconica esperancensis, from a cloud forest in the south of Mexico, is characterized by subrhomboid basidiospores and short cheilocystidia. Full descriptions, illustrations, and comparisons with similar species are provided for both species. Bayesian and maximum likelihood analyses were performed employing sequences of nuc ITS rDNA, including seven new sequences from historical type collections of D. aequatoriae, D. alpestris, D. semiinconspicua, Deconica submaritima, D. thailandensis, D. umbrina, and Psilocybe subrunneocystidiata (= Deconica neorhombispora). As expected, the results showed the phylogenetic position of the new species described here within Deconica sect. Chrysocystidiatae, a supported monophyletic group. This section comprises many species, the majority with chrysocystidia, ten of them newly discovered but unnamed taxa. At this time, two taxa are described. Additionally, discussion of the traits found in the four major clades of Deconica is presented.

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Acknowledgments

This work is dedicated to Gastón Guzmán for his great contribution to mycology, especially to the genus Psilocybe, now Deconica and Psilocybe s.s., and in recognition of his participation in the early stages of this paper. This work was supported by CONACYT (project CONACYT–SEP–2003–C02–42957), University of Guadalajara, and Idea Wild. We thank the curators of F, IBUG, ICN, L, TENN, WU, and XAL that kindly provided loans and colleagues who gave some specimens to this study, particularly to Alonso Cortés-Pérez, T. Kewin, and Christine Braaten. Georgina Vargas Amado collaborated with the molecular lab work and Florencia Ramírez-Guillén helped in obtaining literature. The second author thanks CNPq for scholarship grant during the doctoral course. PBM was supported by NSF (DEB–0949517), a research grant from the Australian Biological Resources Study (RFL211–31) co-funded by the Western Australian Naturalists’ Club Inc., and a collecting permit from the Queensland Department of Environment and Resource Management.

Funding

University of Guadalajara, CONACYT (project CONACYT–SEP–2003–C02–42957), Idea Wild, US National Science Foundation (DEB–0949517), and Australian Biological Resources Study (RFL211–31).

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Authors and Affiliations

  1. CONACyT-Departamento de Botánica y Zoología, Universidad de Guadalajara, Apdo. Postal 1-139, Zapopan, 45101, Jalisco, Mexico

    Virginia Ramírez-Cruz

  2. Centro de Ciências Humanas e da Educação, Universidade Estadual do Norte do Paraná, Av. Getúlio Vargas, 850, Jacarezinho, Paraná, 86400-000, Brazil

    Paula Santos da Silva

  3. Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Zapopan, Jalisco, Mexico

    Alma Rosa Villalobos-Arámbula

  4. Department of Ecology and Evolutionary Biology, University of Tennessee, 332 Hesler Biology Building, Knoxville, Tennessee, 37996-1610, USA

    P. Brandon Matheny

  5. Naturalis Biodiversity Center, Leiden, Darwinweg 2, 2333 CR, Leiden, Netherlands

    Machiel Noordeloos & Luis Morgado

  6. Department of Biosciences, University of Oslo, PO Box 1066, Blindern, 0316, Oslo, Norway

    Luis Morgado

  7. Departamento de Botânica, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, RS, 91501-970, Brazil

    Rosa Mara Borges da Silveria

  8. Departamento de Botánica y Zoología, Universidad de Guadalajara, Apdo. Postal 1-139, Zapopan, 45101, Jalisco, Mexico

    Laura Guzmán-Dávalos

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  1. Virginia Ramírez-Cruz
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  2. Paula Santos da Silva
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Correspondence to Laura Guzmán-Dávalos.

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Ramírez-Cruz, V., da Silva, P.S., Villalobos-Arámbula, A.R. et al. Two new species of Deconica (Agaricales, Basidiomycota) from Australia and Mexico. Mycol Progress 19, 1317–1328 (2020). https://doi.org/10.1007/s11557-020-01629-w

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