Publicado

2022-06-24

Taxonomy, distribution, and conservation status of Geonoma (Arecaceae, Arecoideae): new records for the Maranhão state, Brazil

Taxonomía, distribución y estado de conservación del género Geonoma (Arecaceae, Arecoideae): nuevos registros para el estado de Maranhão, Brasil

DOI:

https://doi.org/10.15446/caldasia.v44n2.84929

Palabras clave:

palms, Geonomateae, Brazilian northeastern, Amazon rainforest, new records (en)
palmas, Geonomateae, noreste brasileño, Amazonía, nuevos registros (es)

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Autores/as

Geonoma is one of the more diverse genera of palms in the neotropical region, which comprises 68 species distributed from southern Mexico to south-western Brazil. In Maranhão, a Brazilian state located in a transition area between the Eastern Amazon, the Cerrado, and the Caatinga, the knowledge about this genus still is deficient. For this reason, we elaborated a taxonomic study of the genus Geonoma for the state, based on the descriptive analysis of voucher specimens of national and international herbaria, and specimens collected in our expeditions. A total of five species were identified: G. baculifera and G. leptospadix species were previously cited in the literature, whereas G. maxima subsp. maxima, G. pohliana subsp. weddelliana and G. poiteauana are presented as new records. Taxonomic descriptions and distribution information are shared, as well as preliminary conservation status assessments of these species. Moreover, an identification key for all species in the state is also supplied. These findings extend the distribution and conservation knowledge of some Geonoma species, and are an important contribution to the identification of the taxa in the region.

Geonoma es uno de los géneros más diversos de palmeras en la región Neotropical, que comprende 68 especies distribuidas desde el sur de México hasta el suroeste de Brasil. En Maranhão, estado brasileño ubicado en una zona de transición entre la Amazonia oriental, el Cerrado y la Caatinga, el conocimiento sobre este género aún es deficiente. Por esta razón, elaboramos un estudio taxonómico del género Geonoma en el estado, que se basó en un análisis descriptivo de especímenes de herbarios nacionales e internacionales, así como de ejemplares recolectados en nuestras expediciones. Se identificaron un total de cinco especies: G. baculifera y G. leptospadix, eran especies previamente citadas en la literatura, mientras que G. maxima subsp. maxima, G. pohliana subsp. weddelliana y G. poiteauana son nuevos registros. Se presentan descripciones taxonómicas e información de distribución, así como evaluaciones preliminares de su estado de conservación. Además, también se proporciona una clave de identificación para todas las especies de Geonoma en el estado. Estos resultados amplían el conocimiento de la distribución y conservación de algunas especies de Geonoma, además de ser un aporte importante para la identificación de los taxones en la región.

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Cómo citar

APA

Lima, G. P., Ferreira, A. . W. C. y de Almeida Jr., E. B. (2022). Taxonomy, distribution, and conservation status of Geonoma (Arecaceae, Arecoideae): new records for the Maranhão state, Brazil. Caldasia, 44(2), 248–259. https://doi.org/10.15446/caldasia.v44n2.84929

ACM

[1]
Lima, G.P., Ferreira, A. W.C. y de Almeida Jr., E.B. 2022. Taxonomy, distribution, and conservation status of Geonoma (Arecaceae, Arecoideae): new records for the Maranhão state, Brazil. Caldasia. 44, 2 (may 2022), 248–259. DOI:https://doi.org/10.15446/caldasia.v44n2.84929.

ACS

(1)
Lima, G. P.; Ferreira, A. . W. C.; de Almeida Jr., E. B. Taxonomy, distribution, and conservation status of Geonoma (Arecaceae, Arecoideae): new records for the Maranhão state, Brazil. Caldasia 2022, 44, 248-259.

ABNT

LIMA, G. P.; FERREIRA, A. . W. C.; DE ALMEIDA JR., E. B. Taxonomy, distribution, and conservation status of Geonoma (Arecaceae, Arecoideae): new records for the Maranhão state, Brazil. Caldasia, [S. l.], v. 44, n. 2, p. 248–259, 2022. DOI: 10.15446/caldasia.v44n2.84929. Disponível em: https://revistas.unal.edu.co/index.php/cal/article/view/84929. Acesso em: 3 dic. 2024.

Chicago

Lima, Gustavo Pereira, Alessandro Wagner Coelho Ferreira, y Eduardo Bezerra de Almeida Jr. 2022. «Taxonomy, distribution, and conservation status of Geonoma (Arecaceae, Arecoideae): new records for the Maranhão state, Brazil». Caldasia 44 (2):248-59. https://doi.org/10.15446/caldasia.v44n2.84929.

Harvard

Lima, G. P., Ferreira, A. . W. C. y de Almeida Jr., E. B. (2022) «Taxonomy, distribution, and conservation status of Geonoma (Arecaceae, Arecoideae): new records for the Maranhão state, Brazil», Caldasia, 44(2), pp. 248–259. doi: 10.15446/caldasia.v44n2.84929.

IEEE

[1]
G. P. Lima, A. . W. C. Ferreira, y E. B. de Almeida Jr., «Taxonomy, distribution, and conservation status of Geonoma (Arecaceae, Arecoideae): new records for the Maranhão state, Brazil», Caldasia, vol. 44, n.º 2, pp. 248–259, may 2022.

MLA

Lima, G. P., A. . W. C. Ferreira, y E. B. de Almeida Jr. «Taxonomy, distribution, and conservation status of Geonoma (Arecaceae, Arecoideae): new records for the Maranhão state, Brazil». Caldasia, vol. 44, n.º 2, mayo de 2022, pp. 248-59, doi:10.15446/caldasia.v44n2.84929.

Turabian

Lima, Gustavo Pereira, Alessandro Wagner Coelho Ferreira, y Eduardo Bezerra de Almeida Jr. «Taxonomy, distribution, and conservation status of Geonoma (Arecaceae, Arecoideae): new records for the Maranhão state, Brazil». Caldasia 44, no. 2 (mayo 2, 2022): 248–259. Accedido diciembre 3, 2024. https://revistas.unal.edu.co/index.php/cal/article/view/84929.

Vancouver

1.
Lima GP, Ferreira AWC, de Almeida Jr. EB. Taxonomy, distribution, and conservation status of Geonoma (Arecaceae, Arecoideae): new records for the Maranhão state, Brazil. Caldasia [Internet]. 2 de mayo de 2022 [citado 3 de diciembre de 2024];44(2):248-59. Disponible en: https://revistas.unal.edu.co/index.php/cal/article/view/84929

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