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Issue: Vol. 734 No. 2: 19 Dec. 2025
Type: Article
Published: 2025-12-19
DOI: 10.11646/phytotaxa.734.2.5
Page range: 207-220
Abstract views: 23
PDF downloaded: 0

Pleurotus tolimensis (Agaricales, Basidiomycota) a new species from a Tropical Dry Forest in Colombia, Tolima

Grupo de Investigación en Productos Naturales (GIPRONUT), Departamento de Química, Universidad del Tolima, Barrio Santa Helena Parte Alta Cl 42 1-02, Ibagué, Colombia; Laboratorio de Taxonomía y Ecología de Hongos ‐TEHO, Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia‐ UdeA, Calle 70 No. 52‐21, Medellín, Antioquia, Colombia
Grupo de Investigación en Productos Naturales (GIPRONUT), Departamento de Química, Universidad del Tolima, Barrio Santa Helena Parte Alta Cl 42 1-02, Ibagué, Colombia
Grupo de Investigación en Productos Naturales (GIPRONUT), Departamento de Química, Universidad del Tolima, Barrio Santa Helena Parte Alta Cl 42 1-02, Ibagué, Colombia; Grupo de Investigación en Inmunobiología y Patogénesis, Laboratorio Inmunología y Biología Molecular, Facultad de Medicina Veterinaria y Zootecnia, Universidad del Tolima, Barrio Santa Helena Parte Alta Cl 42 1-02, Ibagué, Colombia; Grupo de Investigación en Avicultura, Laboratorio Inmunología y Biología Molecular, Facultad de Medicina Veterinaria y Zootecnia, Universidad del Tolima, Barrio Santa Helena Parte Alta Cl 42 1-02, Ibagué, Colombia
Grupo de Investigación en Inmunobiología y Patogénesis, Laboratorio Inmunología y Biología Molecular, Facultad de Medicina Veterinaria y Zootecnia, Universidad del Tolima, Barrio Santa Helena Parte Alta Cl 42 1-02, Ibagué, Colombia; Grupo de Investigación en Avicultura, Laboratorio Inmunología y Biología Molecular, Facultad de Medicina Veterinaria y Zootecnia, Universidad del Tolima, Barrio Santa Helena Parte Alta Cl 42 1-02, Ibagué, Colombia
Grupo de Investigación en Productos Naturales (GIPRONUT), Departamento de Química, Universidad del Tolima, Barrio Santa Helena Parte Alta Cl 42 1-02, Ibagué, Colombia
Grupo de investigación Biología de las Criptógamas de Colombia, Universidad Nacional de Colombia, Sede Bogotá, Facultad de Ciencias, Instituto de Ciencias Naturales, Cra. 30 # 45-02, Ciudad Universitaria, Bogotá, 111321 – Colombia
Edible wild mushroom Neotropical Funga new species phylogeny Pleurotaceae taxonomy Fungi

Abstract

Pleurotus tolimensis is described as a novel species discovered in an urban remnant of Tropical Dry Forest in Tolima, Colombia. Species delimitation was supported by a combination of macro- and micromorphological characters, as well as multilocus phylogenetic analysis. Phylogenetic analyses based on a combined dataset comprising the internal transcribed spacer (ITS), the large subunit of the nuclear ribosomal RNA gene (28S), the translation elongation factor 1-α gene (TEF) and the largest and second largest subunits for the RNA polymerase genes (RPB1, RPB2). Phylogenetic analyses were inferred in a maximum likelihood and Bayesian inference framework. The results allowing the placement of P. tolimensis as a distinct lineage within the genus Pleurotus, closely related to P. floridanus. Diagnostic features include a light orange pileus with grayish edges, mucronate pleurocystidia, larger basidiospores, and the presence of rhomboid crystals near the hymenium, also present in culture. This study not only clarifies the taxonomy of Colombian Pleurotus but also highlights the high but still underexplored fungal diversity of the critically endangered Tropical Dry Forest. By contributing to reducing the Linnaean biodiversity shortfall, these findings provide essential baselines for future ecological, conservation, and applied research on Neotropical funga.

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How to Cite

Dávila-Giraldo, L.R., Zambrano-Forero, C.J., Herrera-Sánchez, M.P., Rondón-Barragán, I.S., Murillo‑Arango, W. & Motato-Vásquez, V. (2025) Pleurotus tolimensis (Agaricales, Basidiomycota) a new species from a Tropical Dry Forest in Colombia, Tolima. Phytotaxa 734 (2): 207–220. https://doi.org/10.11646/phytotaxa.734.2.5