Taxonomic revision of the genus Wurdastom (Melastomataceae, Cyphostyleae)
Background and Aims: Wurdastom is a little-known neotropical genus, which is poorly represented in herbarium collections. A historical summary,discussion about the tribal position, taxonomic review, and a conservation assessment of each species of the genus was carried out.Methods: Wurdastom specime...
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| Formaat: | Online |
| Taal: | eng |
| Gepubliceerd in: |
Instituto de Ecología, A.C.
2020
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| Online toegang: | https://abm.ojs.inecol.mx/index.php/abm/article/view/1642 |
| _version_ | 1799771372900057088 |
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| author | Mendoza Cifuentes, Humberto |
| author_facet | Mendoza Cifuentes, Humberto |
| author_sort | Mendoza Cifuentes, Humberto |
| collection | ABM |
| description | Background and Aims: Wurdastom is a little-known neotropical genus, which is poorly represented in herbarium collections. A historical summary,discussion about the tribal position, taxonomic review, and a conservation assessment of each species of the genus was carried out.Methods: Wurdastom specimens of 17 herbarium collections from Colombia (CAUP, COAH, COL, CUVC, FMB, HUQ, PSO, UDBC, UPTC, VALLE), Ecuador (QCA, QCNE), and the United States of America (CAS, F, MO, NY, US) were reviewed, and relevant type collections available at JSTOR Global Plants were consulted. An identification key, descriptions, illustrations and distribution maps for each species were developed. IUCN guidelines and criterio were used for conservation assessments of each species.Key results: In total, 52 Wurdastom collections were found in the revised herbaria. A new species from Colombia is described and new isotypes from the VALLE Herbarium are reported here for the first time. Wurdastom is a small genus of trees and shrubs from central-west Colombia to northern Peru where it grows in Andean and humid lowland tropical forests. The genus, which is assigned to the tribe Cyphostyleae, is characterized by the acrodromous venation, barbellate trichomes on vegetative parts and inflorescences, multiflorous thyrsoid or pleiothyrsoid inflorescence, haplostemonousflowers, petals ≤1 cm long, inferior ovaries, and capsular fruits.Conclusions: Wurdastom includes eight neotropical species, most of them with restricted distributions. One species is assessed here as Threatened (W. sneidernii), two as Vulnerable (W. cuatrecasasii, W. dudleyi), and the rest are treated as Data Deficient. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-1642 |
| institution | Acta Botanica Mexicana |
| language | eng |
| publishDate | 2020 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-16422022-11-25T20:07:26Z Taxonomic revision of the genus Wurdastom (Melastomataceae, Cyphostyleae) Revisión taxonómica del género Wurdastom (Melastomataceae: Cyphostyleae) Mendoza Cifuentes, Humberto Allomaieta Alloneuron Neotropic Taxonomy Allomaieta Alloneuron Cyphostyleae Neotrópico taxonomía Background and Aims: Wurdastom is a little-known neotropical genus, which is poorly represented in herbarium collections. A historical summary,discussion about the tribal position, taxonomic review, and a conservation assessment of each species of the genus was carried out.Methods: Wurdastom specimens of 17 herbarium collections from Colombia (CAUP, COAH, COL, CUVC, FMB, HUQ, PSO, UDBC, UPTC, VALLE), Ecuador (QCA, QCNE), and the United States of America (CAS, F, MO, NY, US) were reviewed, and relevant type collections available at JSTOR Global Plants were consulted. An identification key, descriptions, illustrations and distribution maps for each species were developed. IUCN guidelines and criterio were used for conservation assessments of each species.Key results: In total, 52 Wurdastom collections were found in the revised herbaria. A new species from Colombia is described and new isotypes from the VALLE Herbarium are reported here for the first time. Wurdastom is a small genus of trees and shrubs from central-west Colombia to northern Peru where it grows in Andean and humid lowland tropical forests. The genus, which is assigned to the tribe Cyphostyleae, is characterized by the acrodromous venation, barbellate trichomes on vegetative parts and inflorescences, multiflorous thyrsoid or pleiothyrsoid inflorescence, haplostemonousflowers, petals ≤1 cm long, inferior ovaries, and capsular fruits.Conclusions: Wurdastom includes eight neotropical species, most of them with restricted distributions. One species is assessed here as Threatened (W. sneidernii), two as Vulnerable (W. cuatrecasasii, W. dudleyi), and the rest are treated as Data Deficient. Antecedentes y Objetivos: Wurdastom es un género neotropical poco conocido y pobremente representado en colecciones de herbario. Se realizó una síntesis histórica, discusión de su posición tribal, revisión taxonómica y un análisis del estado de conservación de las especies del género. Métodos: Se revisaron ejemplares de Wurdastom de 17 herbarios en Colombia (CAUP, COAH, COL, CUVC, FMB, HUQ, PSO, UDBC, UPTC, VALLE), Ecuador (QCA, QCNE) y Estados Unidos de América (CAS, F, MO, NY, US) y se consultaron los ejemplares tipo disponibles en JSTOR Global Plants. Se elaboró una clave de identificación, así como descripciones, ilustraciones y mapas de distribución de cada una de las especies. Se emplearon las pautas y los criterios de la UICN para las evaluaciones de conservación de todas las especies del género.Resultados clave: En total, se encontraron 52 colecciones de Wurdastom en los herbarios revisados. Se describe una especie nueva de Colombia y se documentan isotipos no conocidos con anterioridad procedentes del herbario VALLE. Wurdastom es un género pequeño de árboles y arbustos distribuidos desde el centro-occidente de Colombia hasta el norte de Perú, en bosques andinos y húmedos de zonas bajas. El género forma parte de la tribu Cyphostyleae y se caracteriza por la venación acródroma de las hojas, presencia de tricomas barbelados en las estructuras vegetativas e inflorescencia, inflorescencias multifloras tirsoides o pleiotirsoides, flores haplostemonas, pétalos ≤1 cm de largo, ovario ínfero y frutos capsulares. Conclusiones: Wurdastom comprende ocho especies neotropicales, la mayoría de distribución restringida. Se evalúa una especie como Amenazada (W. sneidernii), dos como Vulnerable (W. cuatrecasasii, W. dudleyi) y el resto puede ubicarse en la categoría de Datos Insuficientes. Instituto de Ecología, A.C. 2020-03-31 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/1642 10.21829/abm127.2020.1642 Acta Botanica Mexicana; No. 127 (2020) Acta Botanica Mexicana; Núm. 127 (2020) 2448-7589 0187-7151 eng https://abm.ojs.inecol.mx/index.php/abm/article/view/1642/pdf https://abm.ojs.inecol.mx/index.php/abm/article/view/1642/2016 https://abm.ojs.inecol.mx/index.php/abm/article/view/1642/epub Derechos de autor 2020 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Mendoza Cifuentes, Humberto Taxonomic revision of the genus Wurdastom (Melastomataceae, Cyphostyleae) |
| title | Taxonomic revision of the genus Wurdastom (Melastomataceae, Cyphostyleae) |
| title_full | Taxonomic revision of the genus Wurdastom (Melastomataceae, Cyphostyleae) |
| title_fullStr | Taxonomic revision of the genus Wurdastom (Melastomataceae, Cyphostyleae) |
| title_full_unstemmed | Taxonomic revision of the genus Wurdastom (Melastomataceae, Cyphostyleae) |
| title_short | Taxonomic revision of the genus Wurdastom (Melastomataceae, Cyphostyleae) |
| title_sort | taxonomic revision of the genus wurdastom (melastomataceae, cyphostyleae) |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/1642 |
| work_keys_str_mv | AT mendozacifuenteshumberto taxonomicrevisionofthegenuswurdastommelastomataceaecyphostyleae AT mendozacifuenteshumberto revisiontaxonomicadelgenerowurdastommelastomataceaecyphostyleae |
