Two new species of Hechtia (Bromeliaceae, Hechtioideae) from Oaxaca, Mexico

Hernández-Cárdenas, Rodrigo Alejandro; López‐Ferrari, Ana Rosa; Espejo‐Serna, Adolfo

doi:10.11646/phytotaxa.397.4.2

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…In recent years, efforts have been made to determine the evolutionary history of this group of plants by analyzing their phylogenetic relationships and the description and delimitation of their species (García-Ruiz et al 2014, González-Rocha et al 2014, López-Ferrari & Espejo-Serna 2014a, Ramírez-Morillo et al 2014, Ramírez-Morillo et al 2015, Ramírez-Morillo et al 2016, Flores-Argüelles et al 2019, Hernández-Cárdenas et al 2019, Hernández-Cárdenas et al 2020, Romero-Soler et al 2022). These advances have made possible to identify the monophyly of Hechtioideae and the presence of three well-supported clades corresponding to three genera; Bakerantha with five species, Hechtia with ca.…”

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confidence: 99%

Spatial phylogenetics in Hechtioideae (Bromeliaceae) reveals recent diversification and dispersal

et al. 2022

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Background: Hechtioideae is a group of Bromeliaceae that is distributed in Megamexico III. In recent years, evolutionary relationships within this lineage have been studied, however, the biogeography of these plants have not yet been explored from a phylogenetic framework. The integration of geographic and phylogenetic information in the evolutionary study of organisms has facilitated the identification of patterns, as well as the exploration of new hypotheses that allow understanding the processes that have influenced the evolutionary history of lineages. Questions and/or Hypotheses: What is the biogeographic history of this lineage? How Hechtioideae has diversified over time? Results: The Neotropical region has the highest species richness of Hechtioideae and the Mexican Transition Zone is the area with the greatest phylogenetic diversity. This lineage presented its highest diversification rate during the late Miocene and Pleistocene (6.5-1 Ma). The ancestral area of the group corresponds to the Neotropical region and the Mexican Transition Zone. In addition, Hechtioideae spread across their current ranges through multiple dispersal events associated with climatic and geological events during the last 10 Ma. Conclusions: Hechtioideae is a group of recent origin whose evolutionary history has been strongly influenced by geological and climatic events over the past 10 Ma, such as the glacial and interglacial periods of the Pleistocene and the great tectonic and volcanic activity that led to the formation of the Trans-Mexican Volcanic Belt.

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confidence: 99%

Spatial phylogenetics in Hechtioideae (Bromeliaceae) reveals recent diversification and dispersal

et al. 2022

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“…The prevalence of the order Fabales also may be due to adaptations such as the capacity to accumulate Ca and S or form a symbiosis with Rhizobium Frank that provide We were surprised that species of Hechtia (Bromeliaceae) and Bletia (Orchidaceae) may be potential gypsophytes, as their families consist largely of epiphytic species and orchids that have not been previously reported in gypsum soils in Campeche. However, gypsophytes from both genera have been found in the state of Oaxaca (Hernández-Cárdenas et al 2019;Salazar et al 2016), andMusarella et al (2018) reported gypsovags from Orchidaceae in a checklist of gypsophilous vascular flora in Italy. Contrary to the assumption of Martínez and Galindo-Leal (2002), the Sapotaceae family was poorly represented (two species).…”

Section: Vascular Plant Diversity In Gypsum Outcrops Of Campechementioning

confidence: 99%

Gypsophily in tropical environments: a case study in the Yucatan Peninsula

Casas Navarro,

Sánchez-del Pino,

Ibarra Morales

2023

J. Trop. Ecol.

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Gypsophily, i.e. the relationship between plants and gypsum soils, has been extensively studied only in arid and semi-arid regions, in contrast to tropical areas, where gypsum outcrops act as refugia for xerothermophilic species and endemic flora. We focused on gypsophile flora in Campeche, Mexico on the Zoh-Laguna Plateau. Using a combination of remote sensing, literature review, and herbarium databases, we identified 14 potential gypsum outcrops and compiled a list of vascular plant species with the potential to grow in gypsum soils in Campeche (151 total species: three probable gypsophiles and endemic to YP, 148 gypsovags). Nine of the 14 potential gypsum outcrops remain unexplored botanically, and 18 species in the final checklist were not previously reported to have an affinity for gypsum soils. This study is the first to confirm the presence of gypsum and report its concentration in the evaluated soils; gypsum content in the soils reached 51%, much higher than the commonly accepted 25%. Our results on gypsum soils and associated vegetation confirm the need for more extensive gypsophily studies in tropical zones.

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Five New Species of Hechtia (Bromeliaceae; Hechtioideae) from Guerrero, Mexico

et al. 2020

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Abstract—The genus Hechtia includes 84 species, 79 of them present in Mexico. With 12 species (including those described herein), the Mexican state of Guerrero is the third most diverse in species. As a result of botanical explorations for the project Bromeliaceae of Mexico, we describe here five new species for science, all endemic to Guerrero: Hechtia elegans, H. ensifolia, H. medusae, H. platyphylla, and H. pycnostachya. The proposed species are compared with other morphologically similar taxa (H. caulescens, H. flexilifolia, H. glauca, H. hintoniana, H. laxissima, and H. pretiosa). Morphological descriptions, images, and a distribution map of the described taxa are included, as well as an identification key for all the species of Hechtia currently known from Guerrero.

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Two new species of Hechtia (Bromeliaceae, Hechtioideae) from Oaxaca, Mexico

Cited by 5 publications

References 3 publications

Spatial phylogenetics in Hechtioideae (Bromeliaceae) reveals recent diversification and dispersal

Spatial phylogenetics in Hechtioideae (Bromeliaceae) reveals recent diversification and dispersal

Gypsophily in tropical environments: a case study in the Yucatan Peninsula

Five New Species of Hechtia (Bromeliaceae; Hechtioideae) from Guerrero, Mexico

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