A new species of Amphitecna (Bignoniaceae) endemic to Chiapas, Mexico

Ortiz-Rodríguez, Andrés Ernesto; Ramos, Carlos Manuel Burelo; Gómez-Domínguez, Héctor

doi:10.3897/phytokeys.65.8454

Cited by 6 publications

(6 citation statements)

References 10 publications

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“…and Tyler 2019). All morphological characters were obtained from original species descriptions (Gentry 1980;Gentry 1982b;Burger and Gentry 2000;Ortiz-Rodriguez et al 2016), herbarium specimens deposited at MEXU (www.ibdata.ib.unam.mx), and type specimens available online (https://www.gbif.org/ and https://plants.jstor.org/). The UPGMA results were contrasted with those derived from other clustering algorithms, specifically Ward, single linkage, complete linkage, WPGMA, WPGMC, and UPGMC, implemented in the R-package stats, using the function hclust (R Core Team 2020: https://www.r-project.org/).…”

Section: Methodsmentioning

confidence: 99%

“…The new species described was recognized by a unique combination of features (Donoghue 1985) identified through comparisons with morphologically similar taxa and literature review (Gentry 1982a, b, Burger andGentry 2000;Ortiz-Rodriguez et al 2016). We assessed the conservation status by calculating the extent of occurrence (EOO) and the area of occupancy (AOO) using the GeoCAT tool (Bachman et al 2011) and applying the IUCN Red List Categories and criteria (IUCN 2019).…”

Section: Methodsmentioning

confidence: 99%

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Taxonomic updates in Amphitecna (Bignoniaceae): A new Mexican species and the re-establishment of the giant-leaved A. megalophylla

Gómez-Domínguez¹,

Ortiz-Rodríguez²,

Velasco-Espino³

et al. 2021

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In this study, we analyzed the morphological affinities of the 24 species of Amphitecna based on detailed morphological studies and multivariate cluster analyses. Our results suggest that the genus Amphitecna includes six morphological groups that can be easily distinguished based on floral and fruits characteristics: A. donnell-smithii group, A. macrophylla group, A. megalophylla group, A. molinae group, A. spathicalyx group, and A. steyermarkii group. A new species from Mexico, Amphitecna fonceti, is described. This new species is clearly differentiated by the predominantly ramiflorous inflorescences bearing multiple flowers per shoot, buds rounded at the apex, large flowers with a transverse fold in the corolla throat, calyx surface pubescent and strongly costate, and fruits elliptic, apiculate at the apex. We discuss the characteristics of each morphological group and their geographical distribution, provide a detailed description of the new species including ethnobotany notes, and propose the re-establishment of the giant-leaved species A. megalophylla.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Taxonomic updates in Amphitecna (Bignoniaceae): A new Mexican species and the re-establishment of the giant-leaved A. megalophylla

Gómez-Domínguez¹,

Ortiz-Rodríguez²,

Velasco-Espino³

et al. 2021

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“…They describe the forest as consisting of “two canopies of straight-trunked, large to medium-sized trees” and with extensive populations of epiphytes in the canopy ( Wake and Johnson 1989 :7). Common tree species are listed by Ortiz-Rodriguez et al (2014, 2016a ). Baker et al 1971 [1973] reported sparse ground vegetation at the site in 1969.…”

Section: Taxonomymentioning

confidence: 99%

“…La Pera is the type locality of several species, including the lizard Anolis parvicirculatus Alvarez del Toro and Smith, 1956 ; the frog Craugastor pozo ( Johnson and Savage, 1995 ); the salamander Ixalotriton niger Wake and Johnson, 1989 ; the crab Sylvathelphusa kalebi Villalobos and Álvarez, 2013 ; and the trees Stenanona migueliana Ortiz-Rodriguez and Schatz, 2014 ; Amphitecna loreae Ortiz-Rodriguez et al 2016a ; and Tridimeris chiapensis Ortiz-Rodriguez et al 2016b (in Ortiz-Rodriguez et al 2014, 2016a, 2016b ). All of these species are known only from the type locality, or from some additional nearby collecting sites.…”

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confidence: 99%

A new species of big-eared climbing rat, genus Ototylomys (Cricetidae: Tylomyinae), from Chiapas, Mexico

Porter

Beasley

Ordóñez‐Garza

et al. 2017

Journal of Mammalogy

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An allopatric population of big-eared climbing rats (Ototylomys) from the Northern Highlands of Chiapas, Mexico, is described as a new species. The new taxon is part of a unique montane rainforest community that includes several other endemic species in the limited geographic range between the Río Grijalva and the Central Depression of Chiapas. Several cranial, external, and molecular characters distinguish this new species of big-eared climbing rat from its more widely distributed congener, Ototylomys phyllotis. We performed principal component and discriminate function analyses of cranial measurements, and found that specimens of the new species consistently could be distinguished from other Ototylomys with strong statistical support. Compared with exemplars of Ototylomys from elsewhere in their range, the new species possesses a karyotype that differs by 3 additional biarmed chromosome pairs, is fixed or nearly fixed for distinct electromorphs at 12 allozyme loci, and the mean genetic distance exceeds 14%, based on comparisons of the mitochondrial cytochrome b gene between the new species of Ototylomys and representatives of O. phyllotis. The restricted distribution in montane karst rainforest suggests that the species and its habitat may be a matter of conservation concern.Una población alopátrica de rata orejuda trepadora (Ototylomys) de las Tierras Altas del Norte de Chiapas, México se describe como una nueva especie. El nuevo taxón es parte de una comunidad única de bosque lluvioso montano que incluye varias especies endémicas en el área de distribución geográfica limitada entre el Río Grijalva y la Depresión Central de Chiapas. Varios caracteres craneales, externos, y moleculares distinguen la nueva rata orejuda trepadora de su congénere más ampliamente distribuido, Ototylomys phyllotis. Se realizaron análisis de componentes principales y de función discriminante de los caracteres craneales, y se encontró que los especímenes de La Pera fueron consistentemente distinguidos de otros Ototylomys con un fuerte soporte estadístico. En comparación con ejemplares de Ototylomys del rango, la nueva especie posee un cariotipo que difiere por 3 pares adicionales de cromosomas biarmados, está fijo o casi fijo por distintos electromorfos en 12 loci alozímicos. Adicionalmente, la media de la distancia genética comparada del gen mitochondrial citocromo b entre la nueva especie de Ototylomys y representantes de O. phyllotis, excede el 14%. La distribución restringida en el bosque lluvioso montano kárstico sugiere que la especie y su hábitat pueden ser de importancia para la conservación.

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“…The Bignoniaceae with ∼900 species includes trees, shrubs and woody vines in the neotropics ( Lohmann and Ulloa 2006 ; Rodriguez et al 2016 ). However, those occurring in paleotropical regions are essentially arborescent ( Machado and Vogel 2004 ).…”

Section: Introductionmentioning

confidence: 99%

Stigmatic limitations on reproductive success in a paleotropical tree: causes and consequences

Raina

Kumar²,

Kaul

2017

AoB PLANTS

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This article focuses on how thigmotropic stigmas play a role in limiting fruit set of plants in their non-native environment. Their pollination success requires optimum pollen transfer in terms of its quality as well as quantity and is dependent on efficient pollinator visitation. This study is particularly valuable both for horticultural purposes and general botanical research. This in turn can improve our ability to understand the behavioural response of exotic plants in non-native environments.

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A new species of Amphitecna (Bignoniaceae) endemic to Chiapas, Mexico

Cited by 6 publications

References 10 publications

Taxonomic updates in Amphitecna (Bignoniaceae): A new Mexican species and the re-establishment of the giant-leaved A. megalophylla

Taxonomic updates in Amphitecna (Bignoniaceae): A new Mexican species and the re-establishment of the giant-leaved A. megalophylla

A new species of big-eared climbing rat, genus Ototylomys (Cricetidae: Tylomyinae), from Chiapas, Mexico

Stigmatic limitations on reproductive success in a paleotropical tree: causes and consequences

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