Leonardo Alvarado-Cardenas

Leonardo Alvarado-Cardenas
Universidad Nacional Autónoma de México | UNAM · Department of Comparative Biology

Full Professor

About

101
Publications
36,757
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636
Citations
Citations since 2016
66 Research Items
532 Citations
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100

Publications

Publications (101)
Article
A new species of Macroscepis from Sinaloa, Mexico is described here. Macroscepis sinalobolana is morphologically similar to M. diademata and M. stevensii but differs in its corolla, gynostegial corona, and fruit morphology, as well as its distribution. Descriptions, illustrations, morphological comparisons, and geographic distribution maps of these...
Article
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Mexico has over 23,300 vascular plant species, half of which are endemic, and ranks third in species richness in the Americas. Compiling checklists and floras, and examining phylogenetic relationships are the ways we develop a better understanding of species richness. The plant checklist and the metadata of the sequences in GenBank can help determi...
Article
Dictyanthus nichongus (Apocynaceae), a new species endemic to Jalisco, México, is described and illustrated herein. Dictyanthus macvaughianus, D. parviflorus, and D. tuberosus exhibit morphological similarities, but the new species differs from all of them by the combination of its flower size, corolla color, and stylar head shape and exsertion. A...
Article
Background and Aims: In Mexico, the genus Gonolobus is currently represented by 43 species. Gonolobus has been studied for some regional floras and taxonomic novelties are continuously being described. In this context, during the review of the herbarium material and collections made in the state of Oaxaca, a specimen that failed to be assigned to a...
Article
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Antecedentes: Las especies de Funastrum están ampliamente distribuidas en México y 70 % de sus especies se localizan en el territorio nacional. La información sistemática del género se encuentra dispersa o desactualizada, así como el conocimiento de su distribución geográfica y estado de conservación. Preguntas: ¿Cuántas especies de Funastrum hay...
Article
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Matelea is an American genus with significant diversity and a controversial taxonomic history. Phylogenetic analyses have highlighted the artificiality of subgenera suggested by Woodson and have placed most of these species in different clades, some of them recognized within independent genera. I analyzed the cases of M. caudata and M. trachyantha,...
Article
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A new species of Funastrum is described from Veracruz, Mexico. Although Funastrum saganii sp. nov. is morphologically similar to F. elegans and F. lindenianum, there are differences in leaf and flower morphology and geographic distribution. Descriptions, illustrations and the geographic distribution of this species are provided, and its conservatio...
Article
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RESUMEN Apocynaceae es la familia vegetal número 12 en cuanto a diversidad en México. La circunscripción de sus especies y géneros ha cambiado a lo largo de los años, así como las herramientas utilizadas para el análisis de las especies. Sin embargo, a pesar de los cambios sistemáticos que han ocurrido en la familia, la problemática nomenclatural y...
Article
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Bourreria ritovegana, a species endemic to Sinaloa belonging to B. spathulata-species group, is described as new for science. This novel species is similar in foliar and some floral traits to B. spathulata and B. rubra, but differs from both by qualitative and quantitative characters (e.g. size and shape of calyx and corolla, and length of pedicels...
Article
Full-text available
Antecedentes: Gonolobus es un género morfológicamente diverso que cuenta con 38 especies en México. En el desarrollo de un inventario de las Gonolobinae a nivel nacional, se detectó un ejemplar de Gonolobus que no se pudo identificar de forma inequívoca con las especies conocidas para el país. Pregunta y/o Hipótesis: El color y patrón morfológico d...
Research Proposal
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Research
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Macpalxóchitl es un medio electrónico de comunicación entre la comunidad de botánicos y la Sociedad Botánica de México, que permite a los interesados en esta área del conocimiento expresar sus ideas e inquietudes, y compartir información en general.
Article
A new species of Spigelia (loganiaceae) from oaxaca, Mexico, is described here. This species is similar to S. humboldtiana and S. anthelmia, due to its size and white flowers, but the leaf texture, phyllotaxy below the inflorescence, and the style length are characters that allow to recognize it as a new species. With this addition, Mexico reaches...
Article
A new species of Spigelia (Loganiaceae) from Oaxaca, Mexico, is described here. This species is similar to S. humboldtiana and S. anthelmia, due to its size and white flowers, but the leaf texture, phyllotaxy below the inflorescence, and the style length are characters that allow to recognize it as a new species. With this addition, Mexico reaches...
Research
Full-text available
Macpalxóchitl es un medio electrónico de comunicación entre la comunidad de botánicos y la Sociedad Botánica de México, que permite a los interesados en esta área del conocimiento expresar sus ideas e inquietudes, y compartir información en general.
Article
Full-text available
A new species of Gonolobus from northwestern Mexico with green and barbate corollas is described here. Gonolobus naturalistae is morphologically similar to G. barbatus, G. pectinatus, and G. sororius but differs in corolla and corona morphology and distribution. Descriptions, illustrations, morphological comparisons, and geographic distribution map...
Research Proposal
Full-text available
Macpalxóchitl es un medio electrónico de comunicación entre la comunidad de botánicos y la Sociedad Botánica de México, que permite a los interesados en esta área del conocimiento expresar sus ideas e inquietudes, y compartir información en general.
Research
Full-text available
Macpalxóchitl es un medio electrónico de comunicación entre la comunidad de botánicos y la Sociedad Botánica de México, que permite a los interesados en esta área del conocimiento expresar sus ideas e inquietudes, y compartir información en general
Research Proposal
Full-text available
Macpalxóchitl es un medio electrónico de comunicación entre la comunidad de botánicos y la Sociedad Botánica de México, que permite a los interesados en esta área del conocimiento expresar sus ideas e inquietudes, y compartir información en general.
Article
A new species of Matelea from central and southern México with green to black corollas and pubescent lobes is described here: Matelea ojadapantha. This taxon is morphologically similar to M. schaffneri and M. atrostellata but differs by the corolla and corona morphology and has a disjunct geographic distribution. Descriptions, illustrations, morph...
Research
Full-text available
Macpalxóchilt es un medio electrónico de comunicación entre la comunidad de botánicos y la Sociedad Botánica de México, que permite a los interesados en esta área del conocimiento expresar sus ideas e inquietudes, y compartir información en general.
Research
Full-text available
Macpalxóchitl es un medio electrónico de comunicación entre la comunidad de botánicos y la Sociedad Botánica de México, que permite a los interesados en esta área del conocimiento expresar sus ideas e inquietudes, y compartir información en general.
Research
Full-text available
Macpalxóchitl es una publicación de divulgación del área de ciencias botánicas. Es un medio electrónico de comunicación entre la comunidad de botánicos y la Sociedad Botánica de México, que permite a los interesados en esta área del conocimiento expresar sus ideas e inquietudes, y compartir información en general.
Article
Full-text available
Antecedentes: La familia Apocynaceae está entre las 13 más diversas de México y su conocimiento taxonómico ha tenido una atención creciente con la implementación de filogenias y otras herramientas para resolver su sistemática. Con más de 10 años del último listado enfocado en la familia, resulta necesario actualizar el conocimiento sistemático del...
Research
Full-text available
Macpalxóchitl es un medio electrónico de comunicación entre la comunidad de botánicos y la Sociedad Botánica de México, que permite a los interesados en esta área del conocimiento expresar sus ideas e inquietudes, y compartir información en general.
Research
Full-text available
Macpalxóchitl es una publicación de divulgación del área de Ciencia Botánica. Es un medio electrónico de comunicación entre la comunidad de botánicos y la Sociedad Botánica de México, que permite a los interesados en esta área del conocimiento expresar sus ideas e inquietudes, y compartir información en general.
Article
Marsdenia R.Br. (Apocynaceae: Asclepiadoideae, Marsdeniae) is a species-diverse genus of Apocynaceae from Mexico. Here, a new species, Marsdenia salaschiblii, from the state of Oaxaca in southeastern Mexico, is described and illustrated. The morphological features of this new taxon are different from those of known species of Marsdenia in Mexico. I...
Research
Full-text available
Macpalxóchitl es una publicación de divulgación del área de Ciencia Botánica. Es un medio electrónico de comunicación entre la comunidad de botánicos y la Sociedad Botánica de México, que permite a los interesados en esta área del conocimiento expresar sus ideas e inquietudes, y compartir información en general
Poster
Full-text available
El estudio de los visitantes florales y la morfología de las flores esta poco estudiada en las Apocynaceae. En México, este grupo es una de las 13 familias de mayor diversidad con 418 especies. La familia ha recibido atención en su sistemática, pero el conocimiento de los visitantes florales y polinizadores se limita a solo cinco artículos publicad...
Article
Desmodium amplistipulaceum, a new species from the evergreen tropical forest of La Sepultura Biosphere Reserve, Chiapas, is described and illustrated. Morphologically it is very similar to Desmodium helleri, but it differs from this by persistent and widely ovate stipules; inflorescences in simple racemes and slightly hirsute sessile loments with 4...
Article
Full-text available
A new species of the genus Dictyanthus is herein described and illustrated, more than 30 years since the last paper describing new species of this genus. Dictyanthus stevensii sp. nov. is known only from the Zoque forest in the Chimalapas region in the state of Oaxaca, Mexico. This species differs from all other species because it has the smallest...
Article
Full-text available
Background and Aims Large clades of angiosperms are often characterized by diverse interactions with pol-linators, but how these pollination systems are structured phylogenetically and biogeographically is still uncertain for most families. Apocynaceae is a clade of >5300 species with a worldwide distribution. A database representing >10 % of speci...
Article
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In this study, we update the systematics of the Tabernaemontana and describe the general patterns of species diversity and conservation status in Mexico. A total of 18 species were registered, including one cultivated species, two new species described here (T. chamelensis L.O. Alvarado & Lozada-Pérez and T. ochoterenae L.O. Alvarado & S. Islas), a...
Article
Full-text available
Antecedentes y Objetivos: Loganiaceae es un grupo de plantas tropicales que se han estudiado escasamente en México. Algunos de sus taxones son poco conocidos en cuanto a su taxonomía y distribución, como el caso del género Mitreola, en el que además algunas de sus especies tienen problemas nomenclaturales. Este trabajo presenta una revisión taxonóm...
Poster
Full-text available
De las más de 22,000 especies de plantas vasculares en México, pocos grupos presentan una alta diversidad y una larga tradición de usos (e.g. Fabaceae, Poaceae). No obstante, otras familias botánicas de alta diversidad e importancia en el conocimiento tradicional se han abordado poco, como es Apocynaceae (418 spp). Algunas de sus especies se ocupan...
Article
Full-text available
Two new species of Matelea from central Mexico with nearly black corollas and papillate lobes are described here: Matelea tezcatlipocantha and Matelea tlilxochitli. These taxa differ from each other and from morphologically similar species (e.g. M. calcicola, M. chrysantha, M. congesta, and M. inops) by the corolla tube and corona ornamentation. De...
Article
Full-text available
A new species of Ipomoea, I. kahloiae, is described and illustrated. It is endemic to tropical semideciduous forests in the Acahuizotla area of the Sierra Madre del Sur in Guerrero, Mexico. Information about its distribution, ecology, conservation and morphology is provided. Phylograms are presented to clarify the relationships of this new species...
Article
Full-text available
A new species of Tabernaemontana from south-eastern Mexico is described and illustrated. Tabernaemontana riverae is separated from all known species of the genus by its long elliptic–lanceolate sepals and infundibuliform corolla. The new species is endemic to Mexico and only observed in the states of Oaxaca, Tabasco, and Veracruz. With this additio...
Article
Two new species of Spigelia (Loganiaceae) from the states of Guerrero and Estado de Mexico are described here. This species represents a case of convergence with a species native to South America, Spigelia nicotianiiflora. With this addition, Mexico reaches a total of 22 species of the genus, of which more than 50% are endemic or microendemic. This...
Article
Familia distribuida en las regiones tropicales y subtropicales del Viejo y Nuevo Mundo, con 13 géneros y cerca de 400 especies en su nueva circunscripción. En la región de estudio se encuentra distribuido solamente el género Spigelia.
Article
We describe and illustrate a new species of Mandevilla for the states of Oaxaca and Veracruz, Mexico. Mandevilla sherlockii sp. nov. can be separated from the other similar species of the genus by its subcoriaceous leaf blades and inflorescences with a conspicuously curved rachis between each flower. Including this new species, Mexico is a hotspot...
Article
A new Mexican species of Spigelia (Loganiaceae), distributed in the states of Guerrero and Michoacán, is here described. The new species can be distinguished from the similar-looking S. humboldtiana by its corolla with innerly purple lobes, inserted stamens above the proximal half of the corolla tube and exserted style. With this contribution, Mexi...
Article
Full-text available
Cascabela is a Neotropical genus of Apocynaceae with six species: C. balsaensis, C. gaumeri, C. ovata, C. pinifolia, C. thevetia and C. thevetioides. Its taxonomic history has long been a subject of controversy, especially due to its circumscription as a genus closely related to Thevetia. In this work, we revised the taxonomy of Cascabela for Mexic...
Article
It is herein described Matelea cervantesii as a new species for the Mexican flora. The new species is endemic to southern Mexico and it is morphologically akin to Matelea crenata (Matelea subgenus Heliostemma). Comparative illustrations are also provided in the present work.
Article
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Trees or tree-like plants are defined here broadly as perennial, self-supporting plants with a total height of at least 5m, without considering ascending leaves or inflorescences, and with 1 or several erect stems with a diameter of at least 10cm. In this third contribution of the taxonomic compilation of Mexico's native tree species, 271 species a...
Article
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Beaucarnea olsonii is described and illustrated from tropical deciduous forests of SW Puebla, Mexico. The new species can be distinguished from other Beaucarnea species by its massively swollen base that abruptly tapers into slender branches, by its conspicuously long stigma, and by its pedicel articulation that occurs at 2/3 of the length of the p...
Article
Full-text available
Antecedentes y Objetivos: Las Apocynaceae son uno de los grupos más diversos de México con numerosos aportes para entender su sistemática y distribución. No obstante, algunos taxones son poco conocidos, como es el caso de Odontadenia macrantha. Se presentan una descripción, nuevos registros de distribución y el estado de conservación de O. macranth...
Article
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Originario de la India, el «árbol milagro» Moringa oleifera lleva ya varios siglos como parte de la horticultura tradicional del trópico seco mexicano, donde se cultiva principalmente para fines ornamentales. Con el reconocimiento reciente de sus propiedades nutritivas, farmacocinéticas e industriales, existe un creciente interés en fomentar su cul...
Article
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Premise of the study: Is there an association between bioclimatic variables and genetic variation within species? This question can be approached by a detailed analysis of population genetics parameters along environmental gradients in recently originated species (so genetic drift does not further obscure the patterns). The genus Agave, with more...
Article
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Agriculture is the food source to feed an increasing global population. Agriculture is the fourth cause of global GHG emissions with the non-CO2 gases among them, including N2O and CH4. These gases have a warming potential of 265 and 28 for N2O and CH4, respectively. In Mexico GHG emission information has been reported in several communications and...
Article
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Background and Objectives: Apocynaceae are one of the most species diverse groups of Mexico with numerous contributions to understand its systematics and distribution. However, some taxa are little known, as in the case of Odontadenia macrantha. A description, new distribution records, and conservation status of O. macrantha in Mexico are presented...
Article
The present work re-evaluates the Mandevilla subsessilis complex (Apocynaceae: Apocynoideae). Based on morphological analysis, including UPGMA, we recognize two separate species, respectively distributed primarily west and east of the Isthmus of Tehuantepec: M. platydactyla (with M. mollis as a synonym) and M. subsessilis. Mandevilla platydactyla i...
Article
A new species of Spigelia endemic to Guerrero, Mexico, is described and illustrated. Spigelia guerrerensis sp. nov. can be separated from all known species of the genus by its infundibuliform white corollas sometimes tinged with purple at the lobe margins and in the base of the throat, apically hirsutulose fruits, and its restriction to the mountai...
Book
Se proporciona la descripción taxonómica de la familia Cytinaceae con un género y dos especies presentes en Guerrero. Se incluye clave de determinación de las especies, un mapa de distribución geográfica de las especies en el estado y una ilustración.
Article
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Despite the economic importance and longstanding worldwide commercialization of representatives of the Beaucarnea lineage, it remains poorly known systematically. One of the main systematic problems is lack of certainty regarding the validity of the genus itself. Some authors consider Beaucarnea a synonym of its close relative Nolina, whereas other...
Article
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A new species of Cascabela endemic to the Balsas Basin from Michoacán, Mexico is described and illustrated. Cascabela balsaensis can be separated from all known species of the genus because of its elliptic-lanceolate to lanceolate and subcoriaceous leaves with dense pubescence, very small calycine colleters, and shorter corollas. In addition, we pr...
Article
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Angiosperm hydraulic performance is crucially affected by the diameters of vessels, the water conducting conduits in the wood. Hydraulic optimality models suggest that vessels should widen predictably from stem tip to base, buffering hydrodynamic resistance accruing as stems, and therefore conductive path, increase in length. Data from 257 species...
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!--[if gte mso 9]> 800x600 El género Mandevilla (Apocynaceae; Apocynoideae) es endémico del neotrópico y uno de los géneros más diversos de la familia. En México, la última revisión de Mandevilla se realizó hace más de diez años, desde entonces nuevas especies fueron descritas así como cambios en los límites del mismo. En este trabajo presentamos u...