New records of mitosporic ascomycetes on Nothofagaceae from Patagonia, Argentina
2023
Romina Magali Sanchez | Maria Virginia Bianchinotti
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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