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August 1994 - January 2006
February 2006 - present
Publications
Publications (369)
Increased hydric stress may result in a reshaping of tree species distribution in moist environments. Dioecious
tree species may be more vulnerable to climate warming if sex-related sensitivity to drought occurs since lower
performance of one sex may drive differential stress tolerance and sex-related mortality rates. We assessed sexrelated
differe...
Structurally dependent plants have evolved six times independently in Cactaceae, where the tribe Hylocereeae is one of the two largest lineages in terms of number of species. To understand the acquisition of different ecological strategies of growth and its relation with the structural evolution of the stems, we have studied the morpho-anatomy of s...
Background. Drought is the main factor that reduces crop yield, and grafting is used to confer resistance traits. Objective. The effect of water deficit on water relations, gas exchange, and proline content was determined in two avocado cultivars, 'Colín V-33' and 'Hass', grafted onto three clonal rootstocks ('Colin V-33' (C), 'Fuerte' (F), and 'Ha...
Agarwood is one of the most valuable non-timber forest products due to its gratifying aroma. This has led to overexploitation of agarwood produced by species from Thymelaeaceae such as Aquilaria spp., Gyrinops spp., Gonystylus spp. and a mostly unnoticed species, Aetoxylon sympetalum . Although a candidate, A. sympetalum has not been included in CI...
Secretory canals are distributed among seed plants, and their diversity is concentrated in many families of angiosperms, while other internal secretory structures such as secretory cavities have been identified only in Rutaceae, Myrtaceae, and Asteraceae. Identifying and recognizing these two types of secretory structures has been complicated, main...
The protocol shows the effectiveness of using safranin-fast green stain for fluorescence microscopy. This staining technique has been used in conventional microscopy to perform anatomical characterizations of plants. However, this protocol describes the procedure for using samples stained with safranin-fast green in conjunction with fluorescence mi...
Antecedentes y Objetivos: Cercocarpus (Dryadoideae, Rosaceae) es un género endémico del centro-oeste de Estados Unidos de América y México. Tres revisiones taxonómicas reconocen de seis a 21 especies, las cuales han sido delimitadas principalmente con base en caracteres morfológicos foliares, y están agrupadas en los complejos C. ledifolius, C. bet...
El manejo forestal puede modificar la estructura y la calidad de la madera. En este estudio se evaluó el efecto de un aprovechamiento forestal sobre la formación de madera en árboles remanentes. En un bosque de Abies religiosa (oyamel) intervenido con un aclareo del 50 % de área basal durante 2014, se inventariaron 10 sitios de muestreo (1000 m2)....
The recent discovery of Psilotum × intermedium in Mexico prompted us to reassess the nomenclature of this genus, which has global implications. From an extensive review of nomenclatural types and herbarium specimens, field collections, and a morpho-anatomical analysis, P. nudum and P. flaccidum are treated as accepted species, while P. × complanatu...
Background and Aims: Systematic anatomy and leaf architecture have supported the separation of species by using leaf morphological and anatomical characters, such as, the arrangement of vascular bundles or the venation pattern. The genus Tilia (Malvaceae) consists of approximately 23 species with unclear boundaries between some of them. Methods: Th...
Axial parenchyma proliferation (non-lignified parenchyma) in wood has been characterized for only a few species. In the present study, we characterized the proliferation, ontogeny, and seasonal variation of wood axial parenchyma in Cochlospermum vitifolium (Bixaceae). This study included material from natural populations from different sites in Mex...
Investigating water flow in the vascular system of plants is important to identify the water path and conduction capacity of different plant species, mainly in succulent species living in dry regions. This study aimed to standardize a method to track water flow in the xylem of Mammillaria bocasana and Echinocereus reichenbachii var. fitchii (Cactac...
Differences in stomatal density (SD) and stomatal index (SI) are associated with the conditions of the environment in which they are distributed. Mimosa species are important elements in different plant communities, yet knowledge of the ecological implications of its stomatal characteristics is scarce. For this reason, SD and SI were determined in...
In tropical dry forests, studies on wood anatomical traits have concentrated mainly on variations in vessel diameter and frequency. Recent research suggests that parenchyma and fibers also play an important role in water conduction and in xylem hydraulic safety. However, these relationships are not fully understood, and wood trait variation among d...
Fourier transform infrared spectroscopy (FTIR) is a simple nondestructive technique that allows the user to obtain quick and accurate information about the structure of the constituents of wood. Spectra deconvolution is a computational technique, complementary to FTIR analysis, which improves the resolution of overlapped or unobserved bands in the...
Leave's vein xylem and stomata hydraulic traits should be critically linked to modulating plant responses to drought in leaves of desert species, influencing traits at the whole-plant level and promoting adaptation. We tested for coordination among leaf vein xylem anatomical traits across different hierarchical orders (hydraulic vessel diameter, ve...
Preveli i priredili: Milan Gavrilović i Pedja Janaćković
Antecedentes y Objetivos:
Milla, con diez especies, es el género más diverso de un grupo monofilético de hierbas geófitas nombrado clado Milla (Brodiaeoideae: Asparagaceae). Milla se diferencia de los géneros emparentados por sus flores hipocrateriformes, blancas, aromáticas y el tubo floral y ginóforo más largo que los tépalos. Milla biflora se en...
Key message
Analysis of wood anatomical traits revealed that drought tolerance predominates in early-successional communities, and vessel variability is relevant for species’ ecological success in seasonally dry tropical environments.
Abstract
Successional tropical dry forests harbor a diverse array of species subjected to a strong seasonal precip...
Otatea is a Neotropical woody bamboo genus with thirteen described species. It is distributed from Mexico to Central America and northeastern Colombia. In Mexico, the archaeological evidence suggests that the culms of Otatea have been used for centuries by some ethnic groups. It is important to explore morphological and anatomical characters for sp...
COLE TCH, GUTIÉRREZ J, TERRAZAS T (2023) Filogenia de ASPARAGACEAE © Cole, Gutiérrez, Terrazas 2023 (CC-BY), Spanish version of: COLE (2023) ASPARAGACEAE Phylogeny Poster (AspPP) • Una selección de géneros importantes, su distribución geográfica y ejemplos de especies distintivas • Asparagaceae s.l. (incluye: Hyacinthaceae, Agavaceae, Laxmanniaceae...
The establishment of Pachycereus pringlei seedlings is a scarce event; soil conditions are one of the factors attributed to its high mortality rate in the early stages of development. The use of organic manures as a substrate helps to improve the structure, porosity, and density of the soil where they live, in addition to providing nutrients that w...
Approximately 42 % of Mexico is affected by soil denudation resulting from moderate to severe sheet erosion and gullying processes. At Huasca de Ocampo (central Mexico), soil degradation has been linked to intense land use dating back to pre-Hispanic times as well as to unfavorable geological, geomorphic, and climatic conditions. Here, we quantify...
Resumen:
Antecedentes y Objetivos: En los estudios sistemáticos el uso de los caracteres anatómicos es de gran relevancia para apoyar o refutar la circunscrip-ción de géneros y especies. Nahuatlea es un género de la tribu Gochnatieae (Asteraceae), que incluye seis especies sustentadas con evidencia mole-cular. Sin embargo, sus caracteres anatómicos...
Grafting in pine species began in the 1960s; however, no current studies provide anatomical descriptions of scions and rootstocks before grafting. Consequently, this research analyzed the initial anatomy of scions of Pinus greggii var. australis Donahue & López produced in nurseries and on-field and rootstocks from four pine species. Stem fractions...
Background:
Many Mexican Ternstroemia species mainly inhabit the tropical montane cloud forest. These species have been misidentified in herbaria due to their morphological resemblance.
Question:
Are there foliar anatomical and micromorphological characters with diagnostic value that allow discriminating between the Mexican species of Ternstroemia...
Palavras-chave: anatomia vegetal; interdisciplinaridade; mundo. O Brasil é reconhecido mundialmente por ser um dos países com maior número de anatomistas vegetais e um dos poucos com vagas abertas anualmente em universidades para esses profissionais. Além disso, também tem sido um dos maio-res exportadores de pessoas com essa especialidade, com ana...
To achieve optimal balance among wood’s support, storage, and transport functions, tree species present adaptive variation in wood anatomical traits. Oaks ( Quercus ) are woody plants that are dominant in many ecosystems, possess wide variation in wood traits, and can tolerate water stress in diverse habitats. Mountain regions contain steep climati...
Quantifying the relative contribution of functional and developmental constraints on phenotypic variation is a long-standing goal of macroevolution, but it is often difficult to distinguish different types of constraints. Alternatively, selection can limit phenotypic (co)variation if some trait combinations are generally maladaptive. The anatomy of...
Cellulose is the main polymer that gives strength to the cell wall and is located in the primary and secondary cell walls of plants. In Cactaceae, there are no studies on the composition of cellulose. The objective of this work was to analyze the crystallinity composition and anatomical distribution of cellulose in Cactaceae vascular tissue. Twenty...
During the last decades, the possibility of using species resistant to droughts and extreme temperatures has been analyzed for use in the production of lignocellulosic materials and biofuels. Succulent species are considered to identify their potential use; however, little is known about Asparagaceae species. Therefore, this work aimed to character...
COLE TCH, TERRAZAS T (2022) Poster Filogenia de CARYOPHYLLALES, Spanish version of: COLE TCH (2022) Caryophyllales Phylogeny Poster • árbol hipotético basado en la filogenia molecular • la longitud de las ramas no expresa la escala de tiempo actual • los caracteres enlistados no representan necesariamente a todos los miembros de un clado • la posic...
The drought susceptibility of woody saplings may explain their low survival in arid environments. Therefore, it is critical to determine which morphological and physiological traits are more responsive to drought among young plants. This study tested whether plant responses to experimental drought differ between two plant functional groups: deciduo...
Successional tropical dry forest (TDF) species face water scarcity in the harsh dry season. Wood features provide insight into potential hydraulic stress coping mechanisms. Here, we describe the wood anatomy of 13 species occurring frequently in successional TDF. Given the marked rainfall seasonality of TDF, we expected these species to share consp...
Antecedentes y Objetivos:
En México solo existen dos publicaciones referentes a la madera de plantas distribuidas en selva baja caducifolia. En Puebla, este tipo de vegetación ocupa el segundo lugar en extensión geográfica. Sin embargo, no se han analizado especies típicas de esta zona. Por ello, los objetivos de este trabajo fueron describir la an...
Biominerals precipitate by biological activity and are found in various organisms. In the Cactaceae family, biominerals have been described for numerous genera and species and their contribution to systematics has recently been demonstrated. The aims of this study are to characterize the biominerals in the stem of members of Cacteae by describing t...
Mexico ranks 5 th in worldwide resin production. Pinus oocarpa is the most widely tapped pine tree in Mexico. Michoacán (central-western Mexico) is the first nationwide state producer of resin. Despite the P. oocarpa relevance, there is no genetic improvement program in the country for resin production. We evaluated the degree of genetic control fo...
The pollen morphology of 11 Anacardiaceae species from the Mexican State of Veracruz was studied. Pollen grains were acetolyzed and examined under light and scanning electron microscopy to determine whether their morphological characteristics are useful to differentiate taxa in this family. Photomicrographs were obtained with both types of microsco...
COLE TCH, TERRAZAS T (2022) Poster Filogenia de ASTERACEAE – Filogenia de Géneros de Compuestas Seleccionados • selección de algunos géneros importantes de la familia compuesta • árbol hipotético basado en estudios filogenéticos moleculares (ver referencias) • la longitud de las ramas no expresa escala de tiempo • distribución geográfica de POWO (p...
Cellulose is the main polymer that gives strength to the cell wall and consists of crystalline-microfibrils and amorphous-matrix cellulose located in the primary and secondary cell walls of the plants. In the Cactaceae family, there are studies on the composition of lignin but not on the composition of cellulose. Therefore, the objective of his wor...
Cellulose is the main polymer that gives strength to the cell wall and consists of crystalline-microfibrils and amorphous-matrix cellulose located in the primary and secondary cell walls of the plants. In the Cactaceae family, there are studies on the composition of lignin but not on the crystallinity of cellulose. Therefore, the objective of his w...
Background and aims – The neotropical tribe Hamelieae currently includes 16 genera mainly characterized by raphides, ebracteolate inflorescences, and 4-merous flowers with contorted corolla aestivation. Within this tribe, the circumscription of Deppea has been particularly controversial, as depending on the authors, several morphologically closely...
Lignin is one of the most studied and analyzed materials due to its importance in cell structure and in lignocellulosic biomass. Because lignin exhibits autofluorescence, methods have been developed that allow it to be analyzed and characterized directly in plant tissue and in samples of lignocellulose fibers. Compared to destructive and costly ana...
This study presents the first comparative analysis of the leaf secretory structures across Asteraceae. In this work, the leaf secretory structures of more than 500 species of 35 of the 40 tribes and 11 of the 13 subfamilies of Asteraceae are described and compared to evaluate their diversity at the tribe level and to identify evolutionary patterns....
The Sapindales are a large order comprised of trees, shrubs, lianas and rarely herbs. This lineage is mostly pantropical with important temperate lineages, inclusing some of the most diverse, highly prized woods in the world, such as mahogany (Swietenia). In this study, we characterized the wood anatomy across eight of the nine Sapindales families,...
The genus Peniocereus contains distinctive cacti with slender stems and thickened roots. The phylogenetic relationship of Peniocereus to other members of the subtribe Pachycereinae is unresolved, and a sister group for the genus has not been suggested in previous molecular phylogenies. Therefore, this study aims to corroborate the monophyly of Peni...
Antecedentes y Objetivos:
“Bacanora” es una bebida espirituosa que emplea como materia prima principalmente las poblaciones silvestres de Agave angustifolia, las cuales requieren estrategias de conservación debido a su sobre aprovechamiento. El objetivo de este trabajo fue evaluar la variación morfológica y el contenido de azúcares reductores total...
Uno de los enfoques más recientes para delimitar especies vegetales es el uso de caracteres anatómicos de la madera en representantes leñosos que ha sido poco explorado en taxones mexicanos. El género Forestiera (Oleaceae) es un ejemplo de esto, pues solo se ha descrito la madera de dos de las 12 especies distribuidas en México. Con el objetivo de...
Oaks (Quercus L.) are a dominant woody plant genus in the northern hemisphere, which occupy a wide range of habitats and are ecologically diverse. We analyzed the wood anatomical traits, the variables derived, and the relative hydraulic conductivity of 21 oak species to identify their performance according to abiotic factors, leaf phenological patt...
Gullies in volcanic deposits are among the first signs of erosion that can be observed during or immediately after the volcanic activity and reflective of unstable conditions of newly formed deposits. Gully formation and erosion pulses may well continue to occur long after the initial landform was created, mostly as a result of torrential rainfall...
Antecedentes y Objetivos:
Uno de los enfoques más recientes para delimitar especies vegetales es el uso de caracteres anatómicos de la madera en representantes leñosos que ha sido poco explorado en taxones mexicanos. El género Forestiera (Oleaceae) es un ejemplo de esto, pues solo se ha descrito la madera de dos de las 12 especies distribuidas en M...
Developmental integration can cause traits to covary over macroevolutionary time and in some cases prevent populations from reaching their adaptive optima. Developmental integration between stomatal size and density may contribute to two major features of stomatal anatomical evolution: inverse size-density scaling and bimodal stomatal ratio. If the...
Cactaceae family has heterogeneity in the accumulation of lignocellulose due to the diversity of shapes and anatomy of the wood. Most studies focus on fibrous and dimorphic species; but the non‐fibrous species are poorly studied. The aims of this work were to analyze the syringyl/guaiacyl ratio of lignin and its distribution in secondary xylem, esp...
La lignina es una de las principales estructuras de la pared celular de las plantas y varía en su composición entre los grupos taxonómicos. El objetivo de este estudio fue revisar la estructura de la lignina, el proceso de lignificación y las propuestas de patrones de evolución de esta. Para esto se revisó la literatura existente, cada punto se ana...
We analysed gynostemium development and morphology of 13 species of Spiranthinae to understand the structure and homology of this organ. Flowers and flower buds in different developmental stages were examined with scanning electron and light microscopy. Gynostemium ontogeny is similar in the early stages among the analysed species, and most of the...
Migration of Boreotropical megathermal taxa during the Oligocene and Miocene played a key role in assembling diversity in tropical regions. Despite scattered fossil reports, the cashew genus Anacardium offers an excellent example of such migration. The fossil woods described here come from localities in Veraguas, Panama mapped as Oligocene-Miocene....
The aims of this study were to evaluate the cambial activity and phenology of three species with different life forms (Alchemilla procumbens, Acaena elongata and Ribes ciliatum) along an altitudinal gradient and to establish which environmental variables (light, soil humidity and temperature) had the greatest influence on cambial activity and pheno...
Echinocactus platycanthus is a remarkable globular cacti that can reach sizes up to 2 m in diameter, and is known for its high tolerance to salt stress, as they inhabit arid environments where salinity is prominent. Understanding the early developmental events of salt tolerance and stress responses will help understand how seedlings establish in ar...
Despite the extensive distribution and use of Pinus oocarpa in Mexico, knowledge on the range of genetic variation and magnitude of quantitative parameters of the defensive structures of the species is rare. Our study attempts to fill this gap by providing a comprehensive assessment of resin duct traits in mother trees and their offsprings in an op...
Plants from arid environments display covarying traits to survive or resist drought. Plant drought resistance and ability to survive long periods of low soil water availability should involve leaf phenology coordination with leaf and stem functional traits related to water status. This study tested correlations between phenology and functional trai...
Introduction: Basal area increment (BAI) is an indicator of forest productivity that varies with tree age and site factors such as soil and climate. Objective: To generate tree-ring width index (RWI) and BAI chronologies of Pinus hartwegii Lindl., relate them to climatic variables, and study the variation in BAI at different altitudes and aspects....
Antecedentes y Objetivos:
Ceiba aesculifolia y C. pentandra (Malvaceae) son dos de las cuatro especies de Ceiba presentes en México. Se conocen como “pochotes”; sus cortezas tienen usos ornamentales y medicinales. Con la finalidad de encontrar atributos distintivos entre estas dos especies de amplia distribución en el país, se realizó un estudio co...
Asteraceae is the largest plant family in México with about 417 genera and 3,113 species, more than 60% of them endemic. Phylogenetic relationships at subfamily and tribal levels have been previously resolved employing both nuclear and plastid molecular markers. However, Asteraceae species native to Mexico have been underrepresented in such phyloge...
Oaks are a dominant woody plant genus in the northern hemisphere that occupy a wide range of habitats and are ecologically diverse. We implemented a functional trait approach that included nine functional traits related to leaves and stems in order to explain the species coexistence of 21 oak species along a water availability gradient in a tempera...
Opuntia is mainly cultivated for its fruit and cladodes, but the chemical composition of lignocellulose in this genus is unknown. The aims of this study were to quantify the extracts in different organic solvents and water, to quantify the lignocellulosic compounds, to compare the syringyl/guaiacyl ratio of lignin, and to calculate the crystallinit...
Antecedentes:
La investigación sobre la ontogenia floral en cactáceas es escasa; ésta es fundamental para conocer la identidad de los órganos florales e identificar caracteres taxonómicos valiosos. En esta investigación se analizó y comparó el desarrollo floral de dos especies de Echinocereus.
Hipótesis:
El desarrollo de los verticilos florales de...
The introduction of exotic buffelgrass (Pennisetum ciliare) to the Sonoran Desert has modified the structure and fuel loads of desert scrub, creating a continuous fuel bed and altering fire frequencies and intensities. The damage to native vegetation has been widely acknowledged, but the mechanisms underlying the response have been little studied....
Wood water content, wood dry mass fraction, wood deposits and mineral inclusions separately affect wood mechanical properties, as well as plant survival and growth rates. Tree species occurring in recovering vegetation from deforestation face water stress, which is a particularly strong environmental filter in tropical dry forest regions. In this s...
A biomineral is a crystalline or amorphous mineral product of the biochemical activity of an organism and the local accumulation of elements available in the environment. The cactus family has been characterized by accumulating calcium oxalates, although other biominerals have been detected. Five species of Cacteae were studied to find biominerals....
Background:
Indicators of productivity could be useful to identify vulnerable species to climate change, stress and safeguarding sites, and early detection of climate change effects, but require to be developed and tested.
Species study:
Pinus patula is a tropical Mexican mountain pine on which divergent opinions are available regarding its sensit...
The aims of this study were to describe and illustrate cypselae of 15 Mexican species of Mutisieae from observations using optical and scanning electron microscopy. The cypselae are heteromorphic with pilose, sericeous or glandular indumentum. The primary sculpture of the surface has two microstructural patterns: reticulate and plicate. The seconda...
There are few investigations that analyze the xylem functional anatomy of monocotyledons, as the methods have been developed for woody plants. This study describes the root, rhizome and aerial stem xylem anatomy and functional anatomy of Canna indica, Cyperus papyrus, and Phragmites communis grown on flooded substrates; and it aims to evaluate the...
The Hylocereeae is a monophyletic group in which eight genera are recognized based on molecular data. However, relationships between the genera remain partially resolved. In this study, combined analyses of molecular and structural characters
for Hylocereeae were carried out with the aims of fnding structural synapomorphies that support the genera...
Pyrolysis coupled to gas chromatography and mass spectrometry (Py-GC/MS) is a fast analytical technique used to characterize different lignocellulosic materials. Additionally, cheminformatics allows processing the vast amount of information obtained from Py-GC/MS for the classification of such materials. Here we characterized the lignocellulosic ma...
A new genus, Xochiquetzallia , for the Brodiaeoideae, Asparagaceae family is here proposed. A taxonomic analysis based on morphology highlights its synapomorphies. The characters that distinguish Xochiquetzallia are the absence of a pith in the gynophore and the presence of an entire stigma. The recognition of Dandya purpusii as a monotypic genus i...
Antecedentes:
Xilema y floema secundarios son derivados del cambium vascular y su dinámica (cribo-xilogénesis) se ha estudiado en coníferas y dicotiledóneas que crecen en un mismo sitio. Estudios que evalúen la cribo-xilogénesis en especies de amplia distribución altitudinal y con diferentes formas de vida son escasos.
Pregunta:
¿existen diferenci...
El transporte de agua en las plantas vasculares terrestres es pasivo y está determinado por la transpiración o pérdida de agua a través de las hojas. La teoría de la cohesión-tensión es la más aceptada para explicar este proceso, y se complementa con la analogía de la ley de Ohm, que analiza el flujo del agua como un proceso catenario. La resistenc...
Premise:
Variation in pollen-ovule ratios is thought to reflect the degree of pollen transfer efficiency-the more efficient the process, the fewer pollen grains needed. Few studies have directly examined the relationship between pollen-ovule ratio and pollen transfer efficiency. For active pollination in the pollination brood mutualisms of yuccas...
The xylem of Cactaceae is a complex system with different types of cells whose main function is to conduct and store water, mostly during the development of primary xylem, which has vessel elements and wide-band tracheids. The anatomy of primary xylem of Cactaceae has been widely studied, but little is known about its chemical composition. The aim...
Phylogenies based on molecular characters has dominated publications rather than those based on morphological characters. Some authors have defended the use of morphology in phylogenetic reconstruction. In Cactaceae few studies have been made combining molecular and morphological characters. A good example about the use of morphology in phylogeneti...
Environmental restrictions faced by successional species (those occurring in recovering vegetation) change gradually between early and late succession. In tropical dry forest (TDF), legume species dominate early succession, i.e. accumulate more biomass than coexisting species, but later are gradually replaced by late successional species. Stem anat...
The morphology and elemental composition of crystals in embryos, seedlings and adult plants of the globose cacti Mammillaria uncinata were studied. Samples of mature fruits and adult plants were collected. To obtain embryos and seedlings, seeds from mature fruits were germinated under laboratory conditions. Both embryos and seedlings as well as ste...
Generic circumscription and species relationships in several lineages in Cactaceae tribe Cacteae remain unresolved. Turbinicarpus s.l. is one of the most species-rich genera in Cacteae, with its centre of distribution in the Chihuahuan Desert, Mexico. We reconstructed a phylogenetic tree of Turbinicarpus s.l. with Bayesian inference, using plastid...
A multiple epidermis in the green stems of Parkinsonia species has been described; however, there are disagreements among authors with regard to origin and tissues involved. The aims of this study were to identify the origin and development of the epidermis and cortex of P. praecox and relate these to possible adaptations to arid environments. Samp...
Background and Aims:
Leaf architecture and anatomy in the Asteraceae family are extremely diverse and have been studied from ecological, physiological and evolutionary perspectives. The aims of this study are to describe in detail leaf architecture and anatomy for 61 species belonging to 13 tribes of Asteraceae inhabiting a xerophytic scrub in Mexi...
Iresine is an American genus that belongs to Amaranthaceae s.l. To understand its stem anatomy and correlation with the habit and habitat, a comparative study was carried out. We present the most extensive stem anatomical survey of Iresine to date. Our observations agree with wood descriptions for other Amaranthaceae having simple perforation plate...
Resumen Con el objetivo de distinguir las especies que forman parte del complejo de Stenocereus griseus (Cactaceae), se revisaron caracteres morfológicos, datos de localización en ejemplares de herbario y registros en bases de datos de biodiversidad. Se documentaron características morfológicas de 307 ejemplares depositados en 7 herbarios y se proy...
Key message
The Mexican beech undergoes masting events, on average, every 5.5 years. These events depend directly on precipitation.
Abstract
Climate change has considerably impacted the protective functions of tropical montane cloud forests, possibly influencing the synchronicity of phenological processes and the distribution and physiology of pla...
