New records of Coccomyces (Rhytismatales, Ascomycota) for Mexico
Background and Aims: Coccomyces presents subcircular to polygonal ascomata, which are immersed in leaves with black stroma, leaving upon maturity the hymenium exposed and eruptive. The asci are subclavate to cilindrical, and filiform paraphyses with uncinated, coiled, swollen, lanceolated apices. Th...
| Autors principals: | , |
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| Format: | Online |
| Idioma: | spa |
| Publicat: |
Instituto de Ecología, A.C.
2018
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| Accés en línia: | https://abm.ojs.inecol.mx/index.php/abm/article/view/1432 |
| _version_ | 1799771349855502336 |
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| author | Valenzuela, Ricardo Raymundo, Tania |
| author_facet | Valenzuela, Ricardo Raymundo, Tania |
| author_sort | Valenzuela, Ricardo |
| collection | ABM |
| description | Background and Aims: Coccomyces presents subcircular to polygonal ascomata, which are immersed in leaves with black stroma, leaving upon maturity the hymenium exposed and eruptive. The asci are subclavate to cilindrical, and filiform paraphyses with uncinated, coiled, swollen, lanceolated apices. The ascospores are subclavate to filiform and surrounded by a mucilaginous sheath. This genus is endophytic, better known as foliicolous fungi, by forming fructifications on leaf litter in temperate regions. About 116 species have been described. In Mexico, only Coccomyces arctostaphyloides and C. parasiticus have been registered. The main objective of this study is to contribute to the taxonomic knowledge of the genus in the cloud forests from the states of Hidalgo and Puebla, Mexico.Methods: The material deposited in the collection of fungi of the ENCB herbarium was revised, and fresh specimens were collected in the municipalities Zacualtipán de Ángeles and Acaxochitlán, Hidalgo, and those of Honey and Naupan, Puebla. The species were determined and described morphologically, following the traditional mycological techniques.Key results: Coccomyces coronatus and C. tumidus (Rhytismataceae) are registered for the first time for Mexico. The first one is characterized by polygonal apothecia immersed in leaves of Fagus mexicana in the municipality Zacualtipan de Ángeles, Hidalgo, and leaves of Quercus sp. in that of Honey, Puebla, while the second species forms superficial and circular apothecia on leaves of Quercus ilex in the municipalities Acaxochitlán, Hidalgo and Naupan, Puebla. Taxonomic descriptions and illustrations of both foliicolous species from the cloud forest are presented.Conclusions: The endophytic and foliicolous fungi of the Rhytismataceae family are poorly known in Mexico; hence, it is necessary to continue explorations and taxonomic studies that will enrich the knowledge of these fungi in the country. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-1432 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2018 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-14322022-11-17T22:06:39Z New records of Coccomyces (Rhytismatales, Ascomycota) for Mexico Nuevos registros de Coccomyces (Rhytismatales, Ascomycota) para México Valenzuela, Ricardo Raymundo, Tania cloud forest endophytes foliicolous fungi Hidalgo Puebla bosque de niebla endófitos Hidalgo hongos foliícolas Puebla Background and Aims: Coccomyces presents subcircular to polygonal ascomata, which are immersed in leaves with black stroma, leaving upon maturity the hymenium exposed and eruptive. The asci are subclavate to cilindrical, and filiform paraphyses with uncinated, coiled, swollen, lanceolated apices. The ascospores are subclavate to filiform and surrounded by a mucilaginous sheath. This genus is endophytic, better known as foliicolous fungi, by forming fructifications on leaf litter in temperate regions. About 116 species have been described. In Mexico, only Coccomyces arctostaphyloides and C. parasiticus have been registered. The main objective of this study is to contribute to the taxonomic knowledge of the genus in the cloud forests from the states of Hidalgo and Puebla, Mexico.Methods: The material deposited in the collection of fungi of the ENCB herbarium was revised, and fresh specimens were collected in the municipalities Zacualtipán de Ángeles and Acaxochitlán, Hidalgo, and those of Honey and Naupan, Puebla. The species were determined and described morphologically, following the traditional mycological techniques.Key results: Coccomyces coronatus and C. tumidus (Rhytismataceae) are registered for the first time for Mexico. The first one is characterized by polygonal apothecia immersed in leaves of Fagus mexicana in the municipality Zacualtipan de Ángeles, Hidalgo, and leaves of Quercus sp. in that of Honey, Puebla, while the second species forms superficial and circular apothecia on leaves of Quercus ilex in the municipalities Acaxochitlán, Hidalgo and Naupan, Puebla. Taxonomic descriptions and illustrations of both foliicolous species from the cloud forest are presented.Conclusions: The endophytic and foliicolous fungi of the Rhytismataceae family are poorly known in Mexico; hence, it is necessary to continue explorations and taxonomic studies that will enrich the knowledge of these fungi in the country. Antecedentes y Objetivos: Coccomyces presenta ascomas subcirculares a poligonales inmersos en hojas con un estroma negro que al madurar deja el himenio expuesto y errumpente. Las ascas son subclavadas a cilíndricas y las paráfisis filiformes con ápices uncinados, enroscados, hinchados a lanceolados. Las ascosporas varían de subclavadas a filiformes rodeadas por una vaina mucilaginosa. Este género es endófito, mejor conocido como foliícola, por formar fructificaciones sobre hojarasca en regiones templadas. Se han descrito alrededor de 116 especies. En México, sólo se han registrado Coccomyces arctostaphyloides y C. parasiticus. El objetivo principal de este estudio es contribuir al conocimiento taxonómico del género en los bosques de niebla de los estados de Hidalgo y Puebla, México.Métodos: Se revisó el material depositado en la colección de hongos del herbario ENCB; además se recolectaron especímenes en fresco en los municipios Zacualtipán de Ángeles y Acaxochitlán, Hidalgo y en los de Honey y Naupan, Puebla. Las especies se determinaron y describieron morfológicamente siguiendo las técnicas micológicas tradicionales.Resultados clave: Se citan por primera vez para México Coccomyces coronatus y C. tumidus (Rhytismataceae). La primera se caracteriza por presentar apotecios poligonales inmersos en hojas de Fagus mexicana en el municipio Zacualtipán de Ángeles, Hidalgo y hojas de Quercus sp. en el municipio Honey, Puebla, mientras que la segunda forma apotecios superficiales sobre hojas de Quercus ilex en el municipio Acaxochitlán, Hidalgo y en Naupan, Puebla. Se presentan descripciones taxonómicas e ilustraciones de ambas especies foliícolas del bosque de niebla.Conclusiones: Los hongos endófitos foliícolas de la familia Rhytismataceae son pobremente conocidos en México, por lo que es necesario continuar haciendo exploraciones y estudios taxonómicos que lleven a enriquecer el conocimiento de estos hongos en el país. Instituto de Ecología, A.C. 2018-12-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf application/epub+zip application/xml https://abm.ojs.inecol.mx/index.php/abm/article/view/1432 10.21829/abm126.2019.1432 Acta Botanica Mexicana; No. 126 (2019) Acta Botanica Mexicana; Núm. 126 (2019) 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/1432/4006 https://abm.ojs.inecol.mx/index.php/abm/article/view/1432/4007 https://abm.ojs.inecol.mx/index.php/abm/article/view/1432/1784 Derechos de autor 2018 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Valenzuela, Ricardo Raymundo, Tania New records of Coccomyces (Rhytismatales, Ascomycota) for Mexico |
| title | New records of Coccomyces (Rhytismatales, Ascomycota) for Mexico |
| title_full | New records of Coccomyces (Rhytismatales, Ascomycota) for Mexico |
| title_fullStr | New records of Coccomyces (Rhytismatales, Ascomycota) for Mexico |
| title_full_unstemmed | New records of Coccomyces (Rhytismatales, Ascomycota) for Mexico |
| title_short | New records of Coccomyces (Rhytismatales, Ascomycota) for Mexico |
| title_sort | new records of coccomyces (rhytismatales, ascomycota) for mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/1432 |
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