New Species of <i>Byssosphaeria</i> (Melanommataceae, Pleosporales) from the Mexican Tropical Montane Cloud Forest

New Species of <i>Byssosphaeria</i> (Melanommataceae, Pleosporales) from the Mexican Tropical Montane Cloud Forest

<i>Byssosphaeria</i> Cooke is a monophyletic genus of the family Melanommataceae. The genus is characterized by ascomata smaller than 1000 µm, globose, well-developed subiculum, with a flat ostiole, and yellow-orange or reddish-brown color around the ostiole. The peridium is composed of...

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Bibliographic Details
Main Authors: Aurora Cobos-Villagrán, Abigail Pérez-Valdespino, Ricardo Valenzuela, César Ramiro Martínez-González, Isolda Luna-Vega, Lourdes Villa-Tanaca, Aída Verónica Rodríguez-Tovar, Tania Raymundo
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Journal of Fungi
Subjects:
Ascomycota
Dothideomycetes
taxonomy
phylogeny
Online Access:https://www.mdpi.com/2309-608X/11/2/89
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Summary:<i>Byssosphaeria</i> Cooke is a monophyletic genus of the family Melanommataceae. The genus is characterized by ascomata smaller than 1000 µm, globose, well-developed subiculum, with a flat ostiole, and yellow-orange or reddish-brown color around the ostiole. The peridium is composed of an external layer of irregular cells followed by an internal layer of thinner cells. Clavate asci have fusiform ascospores, a hyaline-to-brown color, with one or more septa. The genus <i>Byssosphaeria</i> is composed of 29 species: saprophytes, endophytes, and parasites of woody angiosperms, and they are found in wood, leaves, and other decaying substrates. The distribution of these species is cosmopolitan, and four species have been described in Mexico. This study describes, through morphological characteristics and the phylogenetic analysis of molecular markers (ITS, SSU, LSU, <i>tef1-α</i>), four new species of <i>Byssosphaeria</i>: <i>B. bautistae</i>, <i>B. chrysostoma</i>, <i>B. neorhodomphala</i>, and <i>B. neoschiedermayriana</i>. These species are saprophytes on wood rot and are distributed in mountainous mesophilic forests from the states of Hidalgo, Puebla, and Oaxaca. The significance of this study is in the diversity of this genus in Mexico since eight species have been described.
ISSN:2309-608X

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