Claudia T. Hornung-Leoni

• Ph.D. in Sciences (Systematics)
• Professor- Researcher at Autonomous University of Hidalgo State

Los campus universitarios pueden convertirse en un refugio importante para la biodiversidad, a pesar de los cambios que se registran con el paso del tiempo a nivel local y regional. La Ciudad del Conocimiento, Universidad Autónoma del Estado de Hidalgo (UAEH), cuenta con una superficie de 30 ha y con áreas verdes que han perdido cobertura para dar...

Cactoflora from Sierra del Astillero Durango, México

Introducción Las zonas áridas y semiári-das abarcan el 41% del territorio nacional (Medrano, 2012), donde las cactáceas son emblemáticas por su diversidad y capacidad de adaptación a las condiciones edafoclimáticas de estas. Sin embargo, debido a procesos biológicos propios, como el lento crecimiento, ciclos de vida largos y ende-mismos (Valverde y...

The Sierra Madre Oriental (SMO) is a significant mountain range and one of Mexico's 14 biogeographical provinces. Its delimitation has been debated. This study aims to analyze the distribution of plants, beetles, odonates, amphibians, reptiles, and mammals using an endemicity analysis to identify endemism areas and confirm the SMO's biogeographical...

Background: Easter is an important celebration in Huayacocotla municipality, Veracruz. The residents traditionally decorate the streets with representations of the Viacrucis, using plants for biocultural traditions. Methods: The study took place in Huayacocotla municipality in Veracruz (Mexico) at Easter. We register plant species used in 11 floral...

El término planta arrosetada o rosetas ha sido empleado desde la antigüedad, sin embargo, te has preguntado ¿por qué lleva este nombre? y si ¿existe variación dentro de estas plantas? Se presentan aspectos a analizar desde su origen hasta curiosidades de las plantas en roseta y sus variaciones a considerar cuando observamos estas plantas.

A taxonomic revision of the Mexican genus Bakerantha L. B. Sm. is here presented. Each species entry includes full nomenclature, a morphological description, distributional and phenological data, a discussion of affinities, illustrations, and a conservation assessment according to IUCN criteria. An artificial key is also included to identify live a...

Understanding the spatial and temporal frameworks of species diversification is fundamental in evolutionary biology. Assessing the geographic origin and dispersal history of highly diverse lineages of rapid diversification can be hindered by the lack of appropriately sampled, resolved, and strongly supported phylogenetic contexts. The use of curren...

RESUMEN Las bromelias son consideradas casi endémicas del continente americano, una sola especie es nativa de África. En el plano etnobotánico sus usos datan de tiempos remotos en distintas culturas. El objetivo de esta investigación fue conocer los usos de estas plantas en el Estado de Jalisco, México. La información recabada derivó de la investig...

"Las bromelias son consideradas casi endémicas del continente americano, una sola especie es nativa de África.En el plano etnobotánico sus usos datan de tiempos remotos en distintas culturas. El objetivo de esta investigación fue conocer los usos de estas plantas en el Estado de Jalisco, México. La información recabada derivó de la investigación en...

Background: Hechtia is known among Bromeliaceae by its unisexual, sexually dimorphic, mainly fragrant flowers and dioecy; delimitation of taxa particularly on those with lateral inflorescence, requires qualitative morphological evidence from both sexes, because dimensions of structures change during its growth. Hypotheses: Hechtia species are deli...

We studied the rupicolous and dioecious species of Bakerantha (Bromeliaceae) that grow as narrow endemics in central-eastern Mexico. We aimed to describe the spatio-temporal framework in which Bakerantha and its species originated using a phylogeographic and population genetics approach. We carried out population genetics analyses on 29 populations...

A taxonomic revision of the Central American genus Mesoamerantha I. Ramírez & K. Romero is here presented. Each species entry includes full nomenclature, a morphological description, distributional and phenological data, a discussion of affinities, illustrations, and a conservation assessment following IUCN guidelines. In addition, epitypes are pro...

Background and aims – A linear morphometric analysis of three taxa of the Tillandsia erubescens complex, composed of T. erubescens var. arroyoensis, T. erubescens var. erubescens, and T. erubescens var. patentibracteata, is presented to evaluate their circumscription. Additionally, their taxonomic rank as varieties or species is discussed consideri...

Bakerantha is one of three genera of subfamily Hechtioideae (Bromeliaceae). This genus was reestablished recently, and currently contains four species (B. caerulea, B. lundelliorum, B. purpusii, and B. tillandsioides), which are distributed throughout the central region of Mexico. Bakerantha tillandsioides has the widest geographical distribution o...

A sensitive electrochemical detection method for Salmonella spp. was described, based on the use of Hechtia argentea lectin immobilised on a screen-printed gold electrode. The lectin was extracted from Hechtia argentea, a plant belonging to the Bromeliaceae family. The lectin with molecular weight near 27.4 kDa showed selectivity towards D-mannose,...

Hechtia argentea was described from a cultivated pistillate plant of unknown origin. The type specimen consists of a leaf fragment and a portion of a pistillate inflorescence. Hechtia argentea is part of a group of species with rosettes that bloom laterally, showing variation in dimensions and structure of the inflorescences of both sexes through t...

22 La guapilla (Hechtia podantha Mez) es una bromelia que comparte caracteres con agaves: forma arrosetada y hojas suculentas con espinas en sus márgenes. Sin embargo, presenta algunas características que la distinguen de los agaves. En este artículo se responden una serie de incógnitas y se aportan datos curiosos sobre la historia de vida de la es...

Morphological variation can be promoted by ecological factors and the evolutionary history of the taxa. The Aspidoscelis gularis complex is one of the groups of whiptail lizards that exhibits one of the widest distributions in North America, occupying a great variety of environments. Its members are similar in morphology, which has contributed to t...

Con base en la información de 243 ejemplares de herbario, se reconocen 24 especies, lo cual representa el 35% de las conocidas para el país, ubicando al estado en quinto lugar en cuanto a riqueza específica. Se actualizaron las descripciones existentes, aportando datos sobre su morfología, distribución y fenología. Se presenta una clave dicotómica....

Galphimia glauca is a plant that is endemic to Mexico and has been commonly used since pre-Hispanic times to treat various illnesses, including central nervous system disorders and inflammation. The first studies investigating a natural population of G. glauca in Mexico showed that the plant has anxiolytic and sedative activities in mice and humans...

This study presents a list of species of the two most important families with epiphytic elements, Bromeliaceae and Orchidaceae, from the Reserva de la Biosfera Barranca de Metztitlán (RBBM), the largest Reserve in Hidalgo, Mexico. Thirty-four species are included, 26 corresponding to species in three genera of bromeliads, and eight species in six g...

The most recent phylogenetic analyses using molecular and morphological data of Hechtioideae revealed the presence of three well-supported, morphologically distinct clades related to each other as follows: (Hechtia tillandsioides complex [Hechtia guatemalensis complex (Hechtia s.s.)]). (1) H. tillandsioides complex is recognized here at the generic...

Individuals of Aechmea bracteata show inflorescences with red scape bracts and odourless, yellow, tubular diurnal flowers, with closely arranged sexual organs, producing a large amount of fruits. In order to investigate the reproductive system of this species, a suite of characters was assessed: phenology, floral morphology and biology, nectar prod...

Se presenta un listado preliminar de 47 especies, se describen usos, importancia, distribución en provincias y características que destacan de las especies. Los géneros más diversos son Hechtia y Tillandsia en Hgo. El número de especies se sigue incrementado. Es un capítulo del Libro Diversidad del Estado de Hidalgo.2017

La gran diversidad de formas, colores, arreglos y fragancias de las flores, está estrechamente relacionada con la diversidad de transportadores de polen, sean bióticos o abióticos. Dentro de los bióticos, tenemos insectos y vertebrados y en ese caso, la forma, color, posición y hora de apertura de las flores, son importantes a la hora de encontrar...

We propose that two populations previously referred to Hechtia epigyna, from the Mexican state of Hidalgo, represent a new species. Plants from the Hidalgo populations share the inferior ovary with Hechtia epigyna, an unusual trait in the genus, but they differ in their growth pattern (central vs. lateral inflorescence), characters of the adaxial f...

The distribution of Chrysina and Plusiotis species from the Hidalgo State was studied by both biogeographical provinces and types of vegetation in order to discuss their utility as indicators of the degree of forest conservation. Bibliographic records and information from three national entomological collections were included in the study. Compleme...

Communities of both transient and resident organisms, interacting in different ways, occur inside tanks (rosettes) of bromeliads. Abundance and composition of the communities differ seasonally. The objectives of this work were to make an initial exploration of the arthropod fauna associated with Tillandsia deppeana in order to obtain a preliminary...

The epiphytic bromeliad Tillandsia imperialis (Bromeliaceae) from Hidalgo State was examined in rainy and drought seasons, and one interesting Collembola community was found. Detritus samples from 12 bromeliads between the years 2008-2009 were collected, and 77 specimens of Collembola of four species were obtained, including a new Sminthurinus (Kat...

Puya raimondii, the giant Peruvian and Bolivian terrestrial bromeliad, is an emblematic endemic Andean species well represented in Huascarán National Park in Peru. This park is the largest reserve of puna (high altitude plateau) vegetation. The objec-tive of this study is to report on genetic variation in populations of P. raimondii from Huascarán...

Bromeliads are monocots that have been consumed by natives in Latin America since pre-Hispanic times. The principal ways bromeliads are used as food sources include the whole fruit or another part of the plant. They are eaten as a vegetable or prepared in beverages (fermented or unfermented). This study includes local literature, personal observati...

The bromeliads have been used by Latin American cultures since ancestral time until now. The goal of this work is update the bromeliads uses in Latin America summarizing personal observations and literature review. In this work are included 78 species of Bromeliaceae employed by humans and the ways that these plants are used in 19 countries in Lati...

Fauna encontrada en Tillandsia imperialis en Zacualtipán de Ángeles, Hgo. Dentro de la fauna de esta especie podemos encontrar arañas, chinches, lombrices, grillos, larvas, ciempiés, cucarachas, cara-coles, escarabajos y mosquitos (en sentido de las agujas del reloj). (Fotos: Bromeliaceae y fauna ©Garrido 2009). Precisiones adicionales sobre ecolog...

1. Subject and source Puya raimondii Harms is the largest bromeliad in the world, reaching up to 12 m in height (Foster, 1950; Hornung-Leoni and Sosa, 2005). It grows at high altitudes in the Puna of scattered locations in the Andes of Peru and Bolivia and is known as the ''Queen of the Puna'' (Raimondi, 1874; Smith and Downs, 1974). Only a few pla...

Puya raimondii, the giant Peruvian and Bolivian terrestrial bromeliad, is an emblematic endemic Andean species well represented in Huascarán National Park in Peru. This park is the largest reserve of puna (high altitude plateau) vegetation. The objec-tive of this study is to report on genetic variation in populations of P. raimondii from Huascarán...

The genus Pitcairnia has been poor studied in the Andes and in spite of the recent efforts in the researchs of the family Bromeliaceae taxonomy and tools aspects still remain to be deciphered to facilitate identification. This study presents the synopsis of the genus Pitcairnia for Mérida State (Venezuela) including detailed description of eight sp...

The genus Pitcairnia has been poor studied in the Andes and in spite of the recent efforts in the researchs of the family Bromeliaceae taxonomy and tools aspects still remain to be deciphered to facilitate identification. This study presents the synopsis of the genus Pitcairnia for Mérida State (Venezuela) including detailed description of eight sp...

The epiphytic bromeliad Tillandsia imperialis (Bromeliaceae) from Hidalgo State was examined in rainy and drought seasons, and one interesting Collembola community was found. Detritus samples from 12 bromeliads between the years 2008-2009 were collected, and 77 specimens of Collembola of four species were obtained, including a new Sminthurinus (Kat...

Resumen Las epífitas juegan un papel importante en los bosques y selvas tropicales, y son capaces de absorber humedad del medio ambiente desarrollando para ello estructuras anatómicas particulares. Tillandsia complanata es una especie epífita que se encuentra en los bosques venezolanos. Se estudió la anatomía foliar mediante cortes a mano alzada, m...

Bromeliads are monocots that have been consumed by natives in Latin America since pre-Hispanic times. The principal ways bromeliads are used as food sources include the whole fruit or another part of the plant. They are eaten as a vegetable or prepared in beverages (fermented or unfermented). This study includes local literature, personal observati...

Communities of both transient and resident organisms, interacting in different ways, occur inside tanks (rosettes) of bromeliads. Abundance and composition of the communities differ seasonally. The objectives of this work were to make an initial exploration of the arthropod fauna associated with Tillandsia deppeana in order to obtain a preliminary...

The bromeliads have been used by Latin American cultures since ancestral time until now. The goal of this work is update the bromeliads uses in Latin America summarizing personal observations and literature review. In this work are included 78 species of Bromeliaceae employed by humans and the ways that these plants are used in 19 countries in Lati...

enero-abril 2012 García-Cruz et al. — Método para observar escamas foliares en Tillandsia spp. programas de educación ambiental para el conocimiento y conservación de sus especies. En su contexto nacional, la colección se constituirá como la segunda en importancia por el número de taxa y la documentación de los ejemplares, únicamente después de la...

Bromeliads are monocots that have been consumed by natives in Latin America since pre-Hispanic times. The principal ways bromeliads are used as food sources include the whole fruit or another part of the plant. They are eaten as a vegetable or prepared in beverages (fermented or unfermented). This study includes local literature, personal observati...

Has pensado cómo era la vegetación y la Tierra hace millones de años? ¿Has observado tu entorno y reflexionado en los procesos que ocurrieron para que las plantas luzcan como hoy en día? En este artículo queremos hacer el ejercicio de imaginarnos cómo era la Tierra en la antigüedad y viajar a través de la historia con un enfoque evolutivo de las pl...

Puya, a large genus mostly from South America, has been taxonomically divided into two subgenera: Puyopsis and Puya. The latter includes only eight species distributed mainly in Chile, extending to Argentina, Bolivia, and Peru. The species of subgenus Puya are recognized by the presence of a sterile apex of the inflorescence branches, whereas those...

1. Subject and source Puya raimondii Harms is the largest bromeliad in the world, reaching up to 12 m in height (Foster, 1950; Hornung-Leoni and Sosa, 2005). It grows at high altitudes in the Puna of scattered locations in the Andes of Peru and Bolivia and is known as the ''Queen of the Puna'' (Raimondi, 1874; Smith and Downs, 1974). Only a few pla...

Meeting Abstract: 35 Willin Henning Society Meeting : a conflicting taxonomic rank either as a genus, or as a subgenus or section within the pantropical genus Boerhavia. A morphological phylogenetic analysis based on parsimony was conducted to test the monophyly of Anulocaulis, to evaluate its phylogenetic position with respect to other potentially...

A group of representative species of the genus Puya was studied to determine if there are allometric relationships between vegetative and floral parts, whether these relationships correlate with their pollination system and if plant size is correlated with elevation and latitude. Fifty-three species representing the morphological variation and dist...

The findings of a research conducted in the Bromeliaceae of the state of Mérida, during the years 1997.1998 are dealt with here. A new record for the Bromeliaceae flora of Venezuela was confirmed (Puya bicolor), four genera were recorded for the first time for the flora of the state of Mérida (Billbergia, Greigia, Mezobromelia and Racinaea), as wel...

Mecanografiado Tesis (Lic. en Biología)-- Universidad de Los Andes, Facultad de Ciencias, Departamento de Biología, Mérida, 1998 Incluye bibliografía