The genus Rhytidhysteron (Dothideomycetes, Ascomycota) in Mexico
Background and Aims: Currently, 21 species associated with the genus Rhytidhysteron are recognized. In Mexico, only Rhytidhysteron rufulum has been reported. The genus is characterized by its navicular to apotecial histerothecia, the margin is striate or smooth; the colours of the epithecium vary fr...
| Hoofdauteurs: | , , , , , , , |
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| Formaat: | Online |
| Taal: | spa |
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Instituto de Ecología, A.C.
2020
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| Online toegang: | https://abm.ojs.inecol.mx/index.php/abm/article/view/1675 |
| _version_ | 1799771376608870400 |
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| author | Cobos Villagrán, Aurora Hernández Rodríguez, César Hugo Valenzuela, Ricardo Villa-Tanaca, Lourdes Calvillo-Medina, Rosa Paulina Mateo-Cid, Luz Elena Martínez-Pineda, Michelle Raymundo, Tania |
| author_facet | Cobos Villagrán, Aurora Hernández Rodríguez, César Hugo Valenzuela, Ricardo Villa-Tanaca, Lourdes Calvillo-Medina, Rosa Paulina Mateo-Cid, Luz Elena Martínez-Pineda, Michelle Raymundo, Tania |
| author_sort | Cobos Villagrán, Aurora |
| collection | ABM |
| description | Background and Aims: Currently, 21 species associated with the genus Rhytidhysteron are recognized. In Mexico, only Rhytidhysteron rufulum has been reported. The genus is characterized by its navicular to apotecial histerothecia, the margin is striate or smooth; the colours of the epithecium vary from orange-reddish, yellow, green to black and its ascospores present three longitudinal septa. The objective of this study is to carry out a taxonomic review of the genus Rhytidhysteron in Mexico, based on macro- and micromorphological characters.
Methods: Ten exploration trips were realized between 2017 to 2019 in several regions of Mexico. In addition, the specimens deposited in the fungus collection of the ENCB herbarium were reviewed. The specimens were studied, described and determined according to traditional mycological techniques.
Key results: 381 specimens belonging to the genus Rhytidhysteron were reviewed, of which four species were determined: R. neohysterinum, a new species for science, R. neorufulum and R. thailandicum, new records for the country, and the previously cited R. rufulum.
Conclusions: The genus Rhytidhysteron has a high diversity of species in Mexico. Most specimens have been found on decomposing branches, mainly of genera of the Fabaceae family in tropical dry forest, which suggest that this group of plants represent the microhabitat to which Rhytidhysteron species have best adapted. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-1675 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2020 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-16752022-11-17T21:14:17Z The genus Rhytidhysteron (Dothideomycetes, Ascomycota) in Mexico El género Rhytidhysteron (Dothideomycetes, Ascomycota) en México Cobos Villagrán, Aurora Hernández Rodríguez, César Hugo Valenzuela, Ricardo Villa-Tanaca, Lourdes Calvillo-Medina, Rosa Paulina Mateo-Cid, Luz Elena Martínez-Pineda, Michelle Raymundo, Tania distribución histerotecio Hysteriales nueva especie taxonomía. distribution Hysteriales hysterothecium new species taxonomy. Background and Aims: Currently, 21 species associated with the genus Rhytidhysteron are recognized. In Mexico, only Rhytidhysteron rufulum has been reported. The genus is characterized by its navicular to apotecial histerothecia, the margin is striate or smooth; the colours of the epithecium vary from orange-reddish, yellow, green to black and its ascospores present three longitudinal septa. The objective of this study is to carry out a taxonomic review of the genus Rhytidhysteron in Mexico, based on macro- and micromorphological characters. Methods: Ten exploration trips were realized between 2017 to 2019 in several regions of Mexico. In addition, the specimens deposited in the fungus collection of the ENCB herbarium were reviewed. The specimens were studied, described and determined according to traditional mycological techniques. Key results: 381 specimens belonging to the genus Rhytidhysteron were reviewed, of which four species were determined: R. neohysterinum, a new species for science, R. neorufulum and R. thailandicum, new records for the country, and the previously cited R. rufulum. Conclusions: The genus Rhytidhysteron has a high diversity of species in Mexico. Most specimens have been found on decomposing branches, mainly of genera of the Fabaceae family in tropical dry forest, which suggest that this group of plants represent the microhabitat to which Rhytidhysteron species have best adapted. Antecedentes y Objetivos: Actualmente, se reconocen 21 especies adscritas al género Rhytidhysteron. En México sólo se ha reportado Rhytidhysteron rufulum. El género se caracteriza por sus histerotecios naviculares a apoteciales, el borde es estriado o liso; los colores del epitecio varían de anaranjado-rojizo, amarillo, verde a negros y las ascosporas presentan tres septos longitudinales. El objetivo del presente estudio es realizar una revisión taxonómica del género Rhytidhysteron en México, basada en caracteres macro y micromorfológicos. Métodos: Se realizaron diez exploraciones entre 2017 y 2019 en diversas regiones de México. Además, se revisaron los especímenes depositados en la colección de hongos del herbario ENCB. Los ejemplares fueron estudiados, descritos y determinados de acuerdo con las técnicas tradicionales en micología. Resultados clave: Se revisaron 381 especímenes pertenecientes al género Rhytidhysteron, de los cuales se determinaron cuatro especies: Rhytidhysteron neohysterinum, una nueva especie para la ciencia, R. neorufulum y R. thailandicum que son nuevos registros para el país, y R. rufulum previamente citado. Conclusiones: El género Rhytidhysteron tiene una alta diversidad de especies en México. La mayoría de los especímenes se han encontrado sobre ramas en descomposición, principalmente en géneros de la familia Fabaceae en bosque tropical caducifolio, lo que podría sugerir que este grupo de plantas representa el microhábitat al que las especies de Rhytidhysteron se han adaptado. Instituto de Ecología, A.C. 2020-05-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf application/xml application/epub+zip https://abm.ojs.inecol.mx/index.php/abm/article/view/1675 10.21829/abm127.2020.1675 Acta Botanica Mexicana; No. 127 (2020) Acta Botanica Mexicana; Núm. 127 (2020) 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/1675/pdf_1 https://abm.ojs.inecol.mx/index.php/abm/article/view/1675/2130 https://abm.ojs.inecol.mx/index.php/abm/article/view/1675/epub Derechos de autor 2020 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Cobos Villagrán, Aurora Hernández Rodríguez, César Hugo Valenzuela, Ricardo Villa-Tanaca, Lourdes Calvillo-Medina, Rosa Paulina Mateo-Cid, Luz Elena Martínez-Pineda, Michelle Raymundo, Tania The genus Rhytidhysteron (Dothideomycetes, Ascomycota) in Mexico |
| title | The genus Rhytidhysteron (Dothideomycetes, Ascomycota) in Mexico |
| title_full | The genus Rhytidhysteron (Dothideomycetes, Ascomycota) in Mexico |
| title_fullStr | The genus Rhytidhysteron (Dothideomycetes, Ascomycota) in Mexico |
| title_full_unstemmed | The genus Rhytidhysteron (Dothideomycetes, Ascomycota) in Mexico |
| title_short | The genus Rhytidhysteron (Dothideomycetes, Ascomycota) in Mexico |
| title_sort | genus rhytidhysteron (dothideomycetes, ascomycota) in mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/1675 |
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