Relevant bibliographies by topics / Leptocereus

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  1. Journal articles

Academic literature on the topic 'Leptocereus'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "Leptocereus"

1

Majure, Lucas C., Yuley Encarnación, Teodoro Clase, Brígido Peguero, Kelly Ho, and Duniel Barrios. "Phylogenetics of Leptocereus (Cactaceae) on Hispaniola: clarifying species limits in the L. weingartianus complex and a new species from the Sierra de Bahoruco." PhytoKeys 172 (January 29, 2021): 17–37. http://dx.doi.org/10.3897/phytokeys.172.59497.

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The Antillean genus Leptocereus represents an in-situ radiation among the Greater and Lesser Antilles of 19 currently recognized species. Extensive fieldwork carried out in the Dominican Republic over recent years has revealed that the species limits of Leptocereus of Hispaniola are more complex than previously thought. There are four currently recognized species that occur on the island, L. demissus, L. paniculatus, L. undulosus and L. weingartianus. We evaluate species limits in this group based on DNA sequence data and phylogenetic analysis, morphological characters and a survey of herbarium specimens from across Hispaniola. Based on our analyses, it is clear that at least five species occur on the island of Hispaniola, with the new species from Sierra de Bahoruco, L. velozianus, described here. We provide an identification key, distribution maps and photographic plates for all species on Hispaniola based on our own fieldwork and the study of herbarium specimens. The description of yet another species of Leptocereus on Hispaniola reiterates the importance of the poorly studied, but yet biodiverse, seasonally dry tropical forest in the Antilles.
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2

Areces-Mallea, Alberto E. "Leptocereus demissus a New Species from Southwestern Hispaniola." Cactus and Succulent Journal 89, no. 3 (May 2017): 115–21. http://dx.doi.org/10.2985/015.089.0303.

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3

Areces-Mallea, Alberto E. "Leptocereus santamarinae (Cactaceae), a New Species from Cuba." Brittonia 44, no. 1 (January 1992): 45. http://dx.doi.org/10.2307/2807439.

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4

Mauseth, James D., and Robert G. Ross. "Systematic anatomy of the primitive cereoid cactus Leptocereus quadricostatus." Bradleya 6, no. 6 (December 1988): 49–64. http://dx.doi.org/10.25223/brad.n6.1988.a2.

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5

Areces-Mallea, Alberto E. "New Taxa of Leptocereus (Cactaceae: Cactoideae) from Western Cuba." Cactus and Succulent Journal 90, no. 4 (December 1, 2018): 258. http://dx.doi.org/10.2985/015.090.0404.

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6

Areces-Mallea, Alberto E. "Leptocereus scopulophilus (Cactaceae), a New Species from Western Cuba." Brittonia 45, no. 3 (July 1993): 226. http://dx.doi.org/10.2307/2807105.

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7

Barrios, Duniel, Luis Roberto González-Torres, and José Angel García-Beltrán. "Vivipary in Cuban cacti: a pioneer study in Leptocereus scopulophilus." Bradleya 30, no. 30 (October 2012): 147–50. http://dx.doi.org/10.25223/brad.n30.2012.a17.

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8

García-Beltrán, José Angel, Duniel Barrios, Luis Roberto González-Torres, Alina Cuza, and Sandy Toledo. "Vivipary in cuban cacti and an assessment of establishment success in Leptocereus scopulophilus." Journal of Arid Environments 184 (January 2021): 104322. http://dx.doi.org/10.1016/j.jaridenv.2020.104322.

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9

Toledo, Sandy, Duniel Barrios, José Angel García-Beltrán, and Luis Roberto González-Torres. "Fenología de la especie amenazada Leptocereus scopulophilus (Cactaceae) en un bosque semideciduo de Cuba occidental." Acta Botanica Mexicana, no. 128 (September 8, 2020): e1701. http://dx.doi.org/10.21829/abm128.2021.1701.

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Antecedentes y Objetivos: Los estudios fenológicos han mostrado su utilidad para entender la dinámica de los ecosistemas y pueden ser útiles para la conservación de especies vegetales. En cactáceas son escasos los estudios que evalúan la fenología reproductiva y vegetativa, en particular sobre especies de bosques semideciduos. El presente estudio aborda diferentes aspectos de la fenología de Leptocereus scopulophilus, una cactácea amenazada y endémica presente en un bosque semideciduo de Cuba occidental. Este estudio tiene como objetivos principales caracterizar la fenología de L. scopulophilus, comparar su comportamiento interanual con diferentes regímenes de precipitación y evaluar las relaciones entre las fenofases y las variables ambientales. Métodos: Se seleccionaron 50 individuos adultos y se registraron, mensualmente durante tres años, el número de botones, flores, frutos, así como el crecimiento vegetativo y los retrocesos de una rama seleccionada al azar. Se evaluaron mensualmente el porcentaje de iluminación, la temperatura, la humedad relativa y las precipitaciones. Los patrones anuales e interanuales de cada fenofase fueron comparados mediante estadística circular. La relación existente entre variables ambientales y las fenofases se evaluó con una correlación de Spearman. Resultados clave: Los patrones de floración y fructificación resultaron unimodales con máximos desfasados en un mes. La floración coincidió con el final de la época seca y la fructificación ocurrió al inicio de la época lluviosa. El crecimiento vegetativo fue generalmente de forma aleatoria y simultáneo a la reproducción, mientras el retroceso de las ramas sucedió durante la época lluviosa. La variable más correlacionada con las fenofases fue la iluminación. Conclusiones: La apertura del dosel del bosque semideciduo donde habita L. scopulophilus favorece la reproducción y el crecimiento de sus ramas. Este evento estuvo modulado por la duración e intensidad de las lluvias de la temporada previa.
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10

Barrios, Duniel, Joel Flores, Luis R. González-Torres, and Alejandro Palmarola. "The role of mucilage in the germination of Leptocereus scopulophilus (Cactaceae) seeds from Pan de Matanzas, Cuba." Botany 93, no. 4 (April 2015): 251–55. http://dx.doi.org/10.1139/cjb-2014-0242.

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Studies of seed mucilage in a number of species suggest that it has multiple ecological roles dependent on species and their environmental context. We evaluate whether mucilage facilitates seed germination for Leptocereus scopulophilus Areces, as well as whether light conditions influence the effect of the mucilage. Three combined treatments of light conditions: (1) shade (10% of sunlight), (2) semi-shade (30% of sunlight), and (3) full light exposure (100% of sunlight), and two seed types (with mucilage and washed) were used. Germinability was affected by light conditions but no effect of mucilage was found; higher germination occurred in shade than in semi-shade conditions. There was no germination in full light conditions. Germination rate (T50) was not affected by light conditions or by the mucilage, or the interaction of both factors. Minimal time to germination (Tmin) was affected by mucilage; seeds with mucilage germinated 2 days later than washed seeds. Thus, facilitation for imbibition of water does not occur in L. scopulophilus seeds. Perhaps the presence of mucilage in seeds of this species serves other purposes such as seed adhesion to soil or to deter predators.
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