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Issue: Vol. 716 No. 2: 28 Aug. 2025
Type: Correspondence
Published: 2025-08-28
DOI: 10.11646/phytotaxa.716.2.8
Page range: 154-160
Abstract views: 1124
PDF downloaded: 8

The geographic distribution of Pluteus xylophilus (Pluteaceae) in the Americas

Fundación Miguel Lillo, Instituto Criptogámico-Sección Micología, Miguel Lillo 251, (4000) San Miguel de Tucumán, Argentina, Universidad Nacional de Tucumán, Facultad de Ciencias Naturales e Instituto Miguel Lillo, Miguel Lillo 205, (4000) San Miguel de Tucumán, Argentina, XyloFungi.TF (Research Group on Xylophilous Fungi in Tropical Forests), Argentina
Universidad Nacional del Nordeste, Instituto de Botánica del Nordeste, Laboratorio de Micología, CC 209, (3400), Corrientes, Argentina
Fundación Miguel Lillo, Instituto Criptogámico-Sección Micología, Miguel Lillo 251, (4000) San Miguel de Tucumán, Argentina, XyloFungi.TF (Research Group on Xylophilous Fungi in Tropical Forests), Argentina
Agaricles SDTFs cryptic species species delimitation Fungi

Abstract

Pluteus xylophilus (Speg.) Singer (1951: 405) is a lignicolous species of the section Pluteus Fr. (1836: 338). It is characterized by a large, plano-convex pileus with a pale gray to grayish brown pileal surface, center often with a broad, low to high umbo, covered with indistinct brown to grayish brown fibrils (darker in the center and paler towards the margin) discoloring radially towards the margin, a cream central stipe with a clavate base and appressed brown fibrils (increasing towards the base), free, crowded and pinkish lamellae, pink spore print, and absence of annulus and volva (Ramírez-Guillén & Guzman 2003, Meijer 2008, Menolli & Capelari 2014, Menolli et al. 2010, 2015). Micromorphologically, this species has broadly ellipsoid to elongate, hyaline, smooth, thick-walled, inamyloid basidiospores, a hymenium with three types of pleurocystidia and dimorphic cheilocystidia, the context composed of inflated and septate, slightly thick-walled hyphae, and a pileipellis, a repent epicutis composed of septate, and elongate, slightly thick to thin-walled hyphae (Singer 1951, 1958, Menolli & Capelari 2014, Menolli et al. 2015). Pluteus xylophilus has a Neotropical distribution with records in Argentina, Bolivia, Brazil, Mexico, Peru, Colombia, and Chile (Spegazzini 1925, Singer & Digilio 1951, Singer 1958, Stijve & Meijer 1993, Valenzuela 2003, Meijer 2006, 2008, Menolli et al. 2015).

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How to Cite

Tincani, M.S., Niveiro, N. & Salvador-Montoya, C.A. (2025) The geographic distribution of Pluteus xylophilus (Pluteaceae) in the Americas. Phytotaxa 716 (2): 154–160. https://doi.org/10.11646/phytotaxa.716.2.8