<em>Centrosema flavescens</em> (Fabaceae, Papilionoideae), a new species from the Yucatan Peninsula, Mexico
Background: Centrosema (Fabaceae) includes 35-44 species in the New World, 10 in Mexico, and 9 in the Yucatan Peninsula. Most species have trifoliolate leaves and bicolored flowers. Unifoliolate leaves are an infrequent character that is found in a few species, e.g., C. sagittatum (Humb. & Bonp...
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| Format: | Article |
| Language: | English |
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Sociedad Botánica de México, A. C.
2023-05-01
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| Series: | Botanical Sciences |
| Subjects: | |
| Online Access: | https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/3300 |
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| author | Germán Carnevali Fernández-Concha Diego F. Angulo José Luis Tapia Muñoz Ivon M. Ramírez Morillo Rodrigo Duno de Stefano |
| author_facet | Germán Carnevali Fernández-Concha Diego F. Angulo José Luis Tapia Muñoz Ivon M. Ramírez Morillo Rodrigo Duno de Stefano |
| author_sort | Germán Carnevali Fernández-Concha |
| collection | DOAJ |
| description |
Background: Centrosema (Fabaceae) includes 35-44 species in the New World, 10 in Mexico, and 9 in the Yucatan Peninsula. Most species have trifoliolate leaves and bicolored flowers. Unifoliolate leaves are an infrequent character that is found in a few species, e.g., C. sagittatum (Humb. & Bonpl. ex Willd.) Brandegee, but monochromatic flowers, e.g, lacking nectar guides, is even a more unusual character state. Several populations of a Centrosema from the Yucatan Peninsula share both character states, a combination that sets them apart from other members of the genus.
Question: Is the Centrosema with unifoliolate leaves, alate petioles, and monochromatic flowers of the Yucatan Peninsula, a species distinct from the phenetically similar C. sagittatum?
Studies species: Centrosema (Fabaceae, Papilionoideae).
Study site and dates: Yucatan Peninsula, Mexico, 2021-2023.
Methods: Botanical specimens were collected and determined taxonomically through the use of relevant literature, keys, and the consulting of botanical collections. The conservation status of the new species was assessed using the IUCN methodology.
Results: The specimens collected do represent an undescribed species that differs from Centrosema sagittatum by its smaller, cream-yellow, monochromatic flowers. The species is assessed as Endangered (EN).
Conclusions: A new species, Centrosema flavescens from the Yucatan Peninsula is proposed. Eleven species of Centrosema are now recognized in Mexico, nine in the Yucatan Peninsula. C. sagittatum does not occur in the Yucatan peninsula.
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| first_indexed | 2024-03-13T10:22:50Z |
| format | Article |
| id | doaj.art-65b79fb426254f2a84cb0936e0bf8c76 |
| institution | Directory Open Access Journal |
| issn | 2007-4298 2007-4476 |
| language | English |
| last_indexed | 2024-03-13T10:22:50Z |
| publishDate | 2023-05-01 |
| publisher | Sociedad Botánica de México, A. C. |
| record_format | Article |
| series | Botanical Sciences |
| spelling | doaj.art-65b79fb426254f2a84cb0936e0bf8c762023-05-20T02:46:37ZengSociedad Botánica de México, A. C.Botanical Sciences2007-42982007-44762023-05-01100110.17129/botsci.3300<em>Centrosema flavescens</em> (Fabaceae, Papilionoideae), a new species from the Yucatan Peninsula, MexicoGermán Carnevali Fernández-Concha0Diego F. Angulo1José Luis Tapia Muñoz2Ivon M. Ramírez Morillo3Rodrigo Duno de Stefano4Herbarirum CICY, Unidad de Recursos Naturales, Centro de Investigación Científica de Yucatán, A.C., Mérida, YucatánHerbarirum CICY, Unidad de Recursos Naturales, Centro de Investigación Científica de Yucatán, A.C., Mérida, YucatánHerbarirum CICY, Unidad de Recursos Naturales, Centro de Investigación Científica de Yucatán, A.C., Mérida, YucatánHerbarirum CICY, Unidad de Recursos Naturales, Centro de Investigación Científica de Yucatán, A.C., Mérida, YucatánHerbarirum CICY, Unidad de Recursos Naturales, Centro de Investigación Científica de Yucatán, A.C., Mérida, Yucatán Background: Centrosema (Fabaceae) includes 35-44 species in the New World, 10 in Mexico, and 9 in the Yucatan Peninsula. Most species have trifoliolate leaves and bicolored flowers. Unifoliolate leaves are an infrequent character that is found in a few species, e.g., C. sagittatum (Humb. & Bonpl. ex Willd.) Brandegee, but monochromatic flowers, e.g, lacking nectar guides, is even a more unusual character state. Several populations of a Centrosema from the Yucatan Peninsula share both character states, a combination that sets them apart from other members of the genus. Question: Is the Centrosema with unifoliolate leaves, alate petioles, and monochromatic flowers of the Yucatan Peninsula, a species distinct from the phenetically similar C. sagittatum? Studies species: Centrosema (Fabaceae, Papilionoideae). Study site and dates: Yucatan Peninsula, Mexico, 2021-2023. Methods: Botanical specimens were collected and determined taxonomically through the use of relevant literature, keys, and the consulting of botanical collections. The conservation status of the new species was assessed using the IUCN methodology. Results: The specimens collected do represent an undescribed species that differs from Centrosema sagittatum by its smaller, cream-yellow, monochromatic flowers. The species is assessed as Endangered (EN). Conclusions: A new species, Centrosema flavescens from the Yucatan Peninsula is proposed. Eleven species of Centrosema are now recognized in Mexico, nine in the Yucatan Peninsula. C. sagittatum does not occur in the Yucatan peninsula. https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/3300LeguminosaePapilionoideaetaxonomic noveltyYucatán |
| spellingShingle | Germán Carnevali Fernández-Concha Diego F. Angulo José Luis Tapia Muñoz Ivon M. Ramírez Morillo Rodrigo Duno de Stefano <em>Centrosema flavescens</em> (Fabaceae, Papilionoideae), a new species from the Yucatan Peninsula, Mexico Botanical Sciences Leguminosae Papilionoideae taxonomic novelty Yucatán |
| title | <em>Centrosema flavescens</em> (Fabaceae, Papilionoideae), a new species from the Yucatan Peninsula, Mexico |
| title_full | <em>Centrosema flavescens</em> (Fabaceae, Papilionoideae), a new species from the Yucatan Peninsula, Mexico |
| title_fullStr | <em>Centrosema flavescens</em> (Fabaceae, Papilionoideae), a new species from the Yucatan Peninsula, Mexico |
| title_full_unstemmed | <em>Centrosema flavescens</em> (Fabaceae, Papilionoideae), a new species from the Yucatan Peninsula, Mexico |
| title_short | <em>Centrosema flavescens</em> (Fabaceae, Papilionoideae), a new species from the Yucatan Peninsula, Mexico |
| title_sort | em centrosema flavescens em fabaceae papilionoideae a new species from the yucatan peninsula mexico |
| topic | Leguminosae Papilionoideae taxonomic novelty Yucatán |
| url | https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/3300 |
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