New records of mitosporic ascomycetes on Nothofagaceae from Patagonia, Argentina
; Bianchinotti, Maria Virginia 
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Fecha
2023-12-22
Editorial
Sociedad Argentina de Botánica
Revista
Boletín de la Sociedad Argentina de Botánica
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ISSN
0373-580X
eISSN
1851-2372
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Introducción y objetivos: La Funga de los bosques patagónicos de “Nothofagus” viene siendo estudiada desde finales del siglo XIX, pero a pesar de los muchos esfuerzos realizados aún está lejos de ser completamente conocida. El objetivo de este trabajo es presentar descripciones detalladas y datos sobre la distribución geográfica de algunos géneros y especies de ascomicetes mitospóricos, que constituyen nuevos registros para Argentina y para la Región Neotropical. M&M: Se recolectaron y estudiaron restos de corteza y madera de Nothofagaceae nativas. Las estructuras reproductivas se seccionaron a mano y se examinaron siguiendo las técnicas micológicas tradicionales. Resultados: Se identificaron seis especies de ascomicetes mitospóricos: Avettaea salvadorae, Bactrodesmium atrum, Dwiroopa ramya, Gilmaniella multiporosa, Monodictys paradoxa and Pycnopeziza quisquiliaris. Se presentan descripciones completas, comentarios sobre la identificación y datos sobre la distribución y el hábitat de cada especie, junto con fotografías que ilustran sus características diagnósticas. Conclusiones: Se registran dos géneros, Dwiroopa y Pycnopeziza, y una especie, M. paradoxa, por primera vez en la Región Neotropical, otras dos especies se registran por primera vez para Sudamérica (B. atrum y G. multiporosa). Este constituye el segundo registro de A. salvadorae en el continente, ampliando así su área de distribución.
Background and aims: The Funga of the Patagonian Nothofagus forests is being studied since the late 19th century, but despite many efforts is still far from being completely known. The aim of this paper is to present detailed descriptions and data on geographical distribution of some genera and species of mitosporic ascomycetes that constitute new records for Argentina and for the Neotropical Region. M&M: Bark and woody debris from native Nothofagaceae were collected and studied. Reproductive structures were hand-sectioned and examined following traditional mycological techniques. Results: Six species of mitosporic ascomycetes were identified: Avettaea salvadorae, Bactrodesmium atrum, Dwiroopa ramya, Gilmaniella multiporosa, Monodictys paradoxa and Pycnopeziza quisquiliaris. Full descriptions, comments on identification and data on distribution and habitat of each species are provided, along with photographs illustrating diagnostic features. Conclusions: Two genera, Dwiroopa and Pycnopeziza, and one species, M. paradoxa, are registered for the first time in the Neotropical Region, two other species are first recorded in South America (B. atrum and G. multiporosa). This constitutes the second record of A. salvadorae in the continent, thus expanding its area of distribution.
Background and aims: The Funga of the Patagonian Nothofagus forests is being studied since the late 19th century, but despite many efforts is still far from being completely known. The aim of this paper is to present detailed descriptions and data on geographical distribution of some genera and species of mitosporic ascomycetes that constitute new records for Argentina and for the Neotropical Region. M&M: Bark and woody debris from native Nothofagaceae were collected and studied. Reproductive structures were hand-sectioned and examined following traditional mycological techniques. Results: Six species of mitosporic ascomycetes were identified: Avettaea salvadorae, Bactrodesmium atrum, Dwiroopa ramya, Gilmaniella multiporosa, Monodictys paradoxa and Pycnopeziza quisquiliaris. Full descriptions, comments on identification and data on distribution and habitat of each species are provided, along with photographs illustrating diagnostic features. Conclusions: Two genera, Dwiroopa and Pycnopeziza, and one species, M. paradoxa, are registered for the first time in the Neotropical Region, two other species are first recorded in South America (B. atrum and G. multiporosa). This constitutes the second record of A. salvadorae in the continent, thus expanding its area of distribution.
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