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Phylogenetic and morphological analyses of species of Marasmius sect. Marasmius from the Atlantic Rainforest, Brazil

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Autor(es):
de Oliveira, Jadson J. S. ; Moncalvo, Jean-Marc ; Margaritescu, Simona ; Capelari, Marina
Número total de Autores: 4
Tipo de documento: Artigo Científico
Fonte: PLANT SYSTEMATICS AND EVOLUTION; v. 306, n. 2, p. 46-pg., 2020-03-02.
Resumo

Marasmius is a genus of mushroom-forming fungi known to harbor a large diversity of species and morphological structures. To date, sections Globulares, Leveilleani, Marasmius, Neosessiles, and Sicci (traditional view) are confirmed in Marasmius s.s. This study focused on the taxa of Marasmius sect. Marasmius, with 18 species from the Atlantic Rainforest of Southeastern Brazil herein included in morphological and phylogenetic analyses based on nrITS data, along with species of the section from various tropical and temperate areas of the World. Seven new species are described: Marasmius alienigenus sp. nov., M. avellaneus sp. nov., M. gracilis sp. nov., M. longibasidiatus sp. nov., M. subputtemansii sp. nov., M. subvigintifolius sp. nov., and M. ypyrangensis sp. nov. Additionally, Marasmius sect. Marasmius subsect. Horriduli is herein emended based on evidences from phylogenetic and morphological analyses. Subsection Horriduli circumscribes foliicolous species producing basidiomata containing Chrysochaetes-type elements in the pileipellis and lamellar edge. This prompts the perspective of a pluralistic view in how characterizing structures of the pileipellis and cheilocystidia to replace the paradigmatic dichotomy Rotalis-Siccus in classification. (AU)

Processo FAPESP: 09/53272-2 - Agaricales da Reserva Biológica de Paranapiacaba
Beneficiário:Marina Capelari
Modalidade de apoio: Auxílio à Pesquisa - Regular
Processo FAPESP: 11/02269-1 - Morfologia e relações filogenéticas de Marasmius (Marasmiaceae) de áreas de Mata Atlântica do estado de São Paulo, Brasil
Beneficiário:Jadson José Souza de Oliveira
Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
Processo FAPESP: 12/21793-6 - Filogenia de Marasmius: um aprimoramento das análises com o uso de quatro regiões do DNA nuclear
Beneficiário:Jadson José Souza de Oliveira
Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado Direto