Martha Martínez

• National Autonomous University of Mexico

Lamiaceae se encuentra dentro del orden Lamiales y está emparentada con las familias Orobanchaceae, Phrymaceae, Mazaceae y Paulowniaceae. En su circunscripción actual, Lamiaceae incluye a algunos géneros que se encontraban dentro de Verbenaceae (Callicarpa L., Clerodendrum L., Gmelina L., Tetraclea A. Gray, Vitex, L. etc.. Estudios filogenómicos re...

Background: Salvia urica Epling is taxonomically and phylogenetically related to Salvia amarissima Ortega. The last species has pharmacological relevance by its contents of bioactive metabolites. Nowadays, Salvia urica has no reports about its chemical constituents and pharmacological activities. Hypothesis: Does the close relationship between S....

Biological inclusions preserved in the amber deposits from Chiapas, Mexico, provide evidence of a tropical environment at low latitudes in North America during the Miocene. Unfortunately, they have a scarce fossil record of plants, and most of them have been related to the extant taxa of the Neotropical region. However, this idea has not been evalu...

Begonia ostulensis sp. nov. is a new species from section Knesebeckia, known solely from the state of Michoacán; it is similar to Begonia monophylla, an endemic species from Mexico with a distribution in the states of Mexico, Colima, Michoacán, Guerrero and Morelos, but B. ostulensis differs from it in having an orbicular, peltate, solitary leaf, w...

Salvia is the most diverse genus within the mint family (Lamiaceae), many of its species are well-known due to their medicinal and culinary uses. Most of the ethnopharmacological and phytochemical studies on Salvia are centred on species from the European and Asian clades. However, studies about the most diverse clade, the Neotropical sages (Salvia...

Acalypha amithii is described and illustrated as a new species from the State of Guerrero, Mexico. Its distribution is restricted to the Pacific slope. Acalypha amithii is morphologically close to the Mesoamerican A. ferdinandi and the South American A. stenoloba. However, it can be distinguished from the former by number of teeth in the bracts of...

The search for molecules that contribute to the relief of pain is a field of research in constant development. Lamiaceae is one of the most recognized families world-wide for its use in traditional medicine to treat diseases that include pain and inflammation. Mexico can be considered one of the most important centers of diversification, and due to...

Premise of research. Salvia is one of the most species-rich genera in the world. Its outstanding diversity and subcosmopolitan distribution have prevented the preparation of a modern comprehensive monograph and re-evaluation of its classification. As phylogenetic efforts advance to untangle the evolutionary relationships of Sal-via, the need for a...

Salvia alata is reported as new record for Ecuador. This species belongs to S. sect. Macrostachyae, thus an updated identification key to species of this section is provided. The descriptions of Salvia alata and the species most morphologically similar to it (Salvia speciosa) are complemented with new information and photographs taken in the field....

In this study, we describe and illustrate Salvia fimbriaticalyx, a new species from Oaxaca, Mexico, which is morphologically similar to Salvia leptostachys, a species from section Angulatae. The new species differs from the latter by having persistent, lanceolate bracts with cuneate base; calyx lobes with a densely fimbriate margin; corolla tube lo...

Premise of research. Salvia is one of the most species-rich genera in the world. Its outstanding diversity and subcosmopolitan distribution have prevented the preparation of a modern comprehensive monograph and re-evaluation of its classification. As phylogenetic efforts advance to untangle the evolutionary relationships of Salvia, the need for a s...

A new species of Helicteres from the Dominican Republic is described and illustrated; increasing the number of species occurring in the Caribbean to five. The new species, H. pegueroi, can be distinguished from H. jamaicensis and H. semitriloba by its habit and calyx and corolla colour, i.e. it is a shrub with red calyces and corollas; its pseudoac...

Context Salvia semiatrata Zucc. (Lamiaceae) is a species used as a tranquilizer and to relieve pain in folk medicine in Santiago Huauclilla, Oaxaca, Mexico. Objective To evaluate the antinociceptive and anxiolytic-like effects of S. semiatrata extracts and identify a bioactive metabolite. Materials and methods The extracts were obtained by macera...

p align="left"> Background : Salvia circinata is an endemic species of Mexico used in the folk medicine of Santiago Huauclilla, Oaxaca, mainly as remedy for gastrointestinal diseases. Hypothesis : If the extracts of Salvia circinata have secondary metabolites with antinociceptive activity, then the behavior of nociception in the model of “whriting”...

A new species of Salvia from the state of Puebla, Mexico, is described and illustrated: Salvia gavilanensis sp. nov., growing in oak forests and oak scrubs, located in the Biosphere Reserve of Tehuacán-Cuicatlán. The new taxon is morphologically similar to S. microphylla, but differs by the herbaceous habit (vs. suffrutescent or shrubby), the strig...

Salvia subg. Calosphace (Lamiaceae, Lamiales) is a highly diverse clade endemic to the New World. The phylogenetic relationships of Calosphace have been previously investigated using DNA sequences of nuclear ITS region and plastid psbA–trnH intergenic spacer, but the resulting trees lack resolution and support for many clades. The present paper rea...

Antecedentes: Lamiaceae es una de las familias con mayor riqueza de especies en México. Sin embargo, aún se carece de un estudio detallado sobre su diversidad en el país y de una revisión taxonómica global y actualizada. Como resultado, el aprovechamiento y conservación de los integrantes de esta familia es limitado. Preguntas: ¿Qué avances se han...

We conducted a pilot study using Anchored Hybrid Enrichment to resolve relationships among a mostly Neotropical sage lineage that may have undergone a recent evolutionary radiation. Conventional markers (ITS, trnL-trnF and trnH-psbA) have not been able to resolve the relationships among species nor within portions of the backbone of the lineage. We...

A new species of Salvia belonging to Salvia sect. Penellia from the state of Oaxaca is here described and illustrated. Only two species are included within this section: S. pennelli and the new species, S. robertoana. Both species are perennial herbs, with a 3-veined upper calyx lip, included stamens in the galea, late deciduous bracts, corolla tub...

Abstract A new species from Oaxaca is described and illustrated. Salvia tetramerioides belongs to section Uliginosae as it shares with the species of this section the presence of a 5-veined, 3-mucronate posterior calyx lobe and a laterally flattened style. However, the morphology of the inflorescence of the new species differs from all the previous...

Salvia (subgénero Calosphace), es el segundo género más diverso en México, con alrededor de 300 especies [1], las cuales se han agrupado en un gran número de secciones [2]. La sección Membranaceae del género Salvia, que fue delimitada por Bentham [3], se distingue por la presencia de brácteas reniformes, coloridas y persistentes. Está conformada po...

A new species of Salvia section Lavanduloideae from the Estado de México is described and illustrated. Salvia semiscaposa is a procumbent plant morphologically similar to S. scaposa and S. helianthemifolia . It differs from the former by having mostly obovate leaf blades, more than six flowers per verticillaster and posterior calyx lobes narrower a...

Se presenta una sinopsis de los géneros de la famiia Euphorbiaceae en México

A new species of Tragia from the state of Oaxaca, Mexico is described and illustrated; it is different from other known Mexican species, although somewhat similar in habit to T. nepetifolia. Tragia chiltepeca is an erect herb with deeply cordate leaves with an acuminate apex and a long petiole, a long pedunculate inflorescence, a single pistillate...

A new species of Tragia from the state of Oaxaca, Mexico is described and illustrated; it is different from other known Mexican species, although somewhat similar in habit to T. nepetifolia. Tragia chiltepeca is an erect herb with deeply cordate leaves with an acuminate apex and a long petiole, a long pedunculate inflorescence, a single pistillate...

Recent molecular studies on the Burseraceae phylogeny point out that the Bursera - Commiphora complex is monophyletic. Both genera develop a brightly colored paseudaril, and it is possible to presume which tissue is a homologous character. This work analyzes the development of this tissue in 14 species of Bursera, with the aim to determine the exis...

A new species of Salvia section Membranaceae is described and illustrated: Salvia confertispicata belongs to subsection Lophanthoideae and shares morphological similarities with Salvia mocinoi; nevertheless, the former differs in having compact inflorescences, rhombic ascendant bracts with caudate apex and cuneate base, glabrate calix at anthesis,...

A new species of Salvia section Membranaceae is described and illustrated: Salvia confertispicata belongs to subsection Lophanthoideae and shares morphological similarities with Salvia mocinoi; nevertheless, the former differs in having compact inflorescences, rhombic ascendant bracts with caudate apex and cuneate base, glabrate calyx at anthesis,...

La familia Lamiaceae es muy diversa en México y se distribuye con preferencia en las zonas templadas, aunque es posible encontrar géneros como Hyptis y Asterohyptis, que habitan en zonas secas y calientes; es una de las familias más diversas en el país, de la cual no se tenían datos actualizados sobre su diversidad y endemismo. En este trabajo se p...

The aim of this research was to identify adapted native plant species with potential for use in phytoremediation of a metalliferous mine tailings heap in Guerrero, Mexico. Physicochemical characterization, total, DTPA-extractable and fractionation of metals in rhizospheric and non-rhizopheric samples were carried out to gain information about their...

A new arborescent species of Croton with accrescent pistillate calyx, Croton pascualii, is described and illustrated from the Pacific Slope of Oaxaca, Mexico. It has certain characteristics in common with Croton oerstedianus, a species included in the section Corylocroton. The proposed new species is characterized by its unisexual cymules, large an...

Durante la revisión de la familia Lamiaceae para el estado de Guerrero, se descubrió una especie nueva de Salvia, perteneciente al subgénero Calosphace. Se presenta la descripción y una ilustración de la nueva especie, Salvia diegoae, y se discuten los caracteres que la distinguen de las especies afines. Esta especie presenta flores totalmente blan...

Resumen Se describe e ilustra a Croton guerreroanus, una especie nueva de Guerrero, México. Durante la revisión de la familia Euphorbiaceae para el estado de Guerrero, se colectaron ejemplares que no corresponden a ninguna especie conocida y se propone como una especie nueva. Esta nueva entidad se distingue de las especies relacionadas porque es un...

A floristic study of the municipality of Atenango del Río, in the State of Guerrero, Mexico, is presented. Botanical collections made over a period of a year, supplemented by a literature search and herbarium work, resulted in the identification of 643 species and 349 genera in 95 families. The families with the most species are Leguminosae (96 spe...

During the study of the Lamiaceae from Guerrero, Mexico, specimens of Lepechinia sect. Glomeratae were found, similar to L. glomerata, but different in having larger flowers that are orange at the base and red at the apex, with a tubular corolla that is invaginated at the base, and widely ovate bracts that are acuminate at the apex. The new species...

Hypenia violacea (Lamiaceae), a new species from Guerrero, Mexico, is described and illustrated. This species is characterized by glabrescent, coriaceous leaves, lax thyrsoid inflorescences with pedunculate and umbelliform cymules that have 3–6 violet flowers with corollas 0.8–1.6cm long. The species is referred to the Southern American genus Hypen...

Croton balsensis (Euphorbiaceae), a new species endemic to the Balsas Depression of southern Mexico, is described and illustrated. It occurs in the states of Guerrero, Morelos, and Puebla, growing in tropical deciduous forest at elevations from 450 to 1850m. It is best accommodated inCroton sect.Cascarilla. The Mexican species of this section are o...

Se da a conocer por primera vez la presencia de Abatia mexicana Standl. en el estado de Guerrero, donde crece en el bosque mesófilo de montaña. Se mencionan sus características distintivas, se proporciona información acerca de su distribución geográfica y fenología

Abalia mexieana Standl. is reported for the first time from Guerrero. Its distinctive characters are indicated, and information on its geographic distribution and phenology are provided.

Se analizaron los patrones de distribución de los géneros de Euphorbiaceae bajo un enfoque panbiogeográfico, empleando el método del análisis de parsimonia de endemismos (PAE). Se obtuvieron cuatro trazos generalizados, que unen las regiones siguientes: (1) Neotropical-Afrotropical (determinado por los géneros Amanoa, Caperonia, Conceveiba, Manprou...

Se hizo un análisis morfológico con microscopía electrónica de barrido de los tricomas presentes en las hojas de 17 especies de la sección Barhamia del género Croton. Se observaron tricomas estrellado-rotados, estrellado-lepidotos, multiradiados y dendríticos, así como glándulas epidérmicas embebidas. Las variaciones morfológicas de los tricomas no...

Se hizo un análisis morfológico con microscopía electrónica de barrido de los tricomas presentes en las hojas de 17 especies de la sección Barhamia del género Croton. Se observaron tricomas estrellado-rotados, estrellado-lepidotos, multiradiados y dendríticos, así como glándulas epidérmicas embebidas. Las variaciones morfológicas de los tricomas no...

Trichomes on both leaf surfaces of 17 species of section Barhamia genus Crotón were studied using scanning electron microscopy. Stellate-rotate, lepidote-stellate, multiradiate and dendritic trichomes as well as embedded epidermal glands were observed. Based on the morphological variations observed in the section, Barhamia cannot be characterized i...

The floristic study for the portion of the Sierra de Taxco in the state of Guerrero, Mexico was carried out, covering 730 km2 of the municipalities of Tetipac, Pilcaya, Taxco de Alarcon, Ixcateopan de Cuauhtémoc and Pedro Ascencio Alquisiras. A data base with 4 139 records was obtained. It includes 1 384 species and 570 genera in 150 families of va...

Resumen. Se analiza la flora del municipio Eduardo Neri, en el estado de Guerrero, dentro de la cuenca del río Balsas. Se encontraron 1342 especies, 566 géneros y 134 familias en dos tipos de vegetación: bosque tropical caducifolio y bosque de Quercus, siendo el primero el de mayor distribución y el más diverso en el área de estudio. Las familias m...

Se describe e ilustra Astrocasia diegoae, una nueva especie del estado de Guerrero, México. Este nuevo taxon se distingue de las restantes cinco especies conocidas de Astrocasia por ser un sufrútice monoico, con flores de sépalos y pétalos casi del mismo tamaño y ocasionalmente inflorescencias bisexuales. El género Astrocasia ha sido considerado es...

En el estudio de la cuenca del río Balsas, fue hallada Pterostemon bravoanus, especie nueva de la familia Grossulariaceae. Se distingue de P. mexicanus y P. rotundifolius por las hojas más grandes, flores más pequeñas y una cima multiflora con más de 50 flores.

Se amplía la descripción de Jatropha andrieuxii Muell. Arg., incluyendo algunos datos de hábitat y una ilustración de la especie. Además, se propone su transferencia de la sección Curcas (Adans.) Griseb. a la sección Platyphyllae Dehgan et Webster por presentar corola gamopétala y estambres biseriados.

Abatia mexicana Standl. is reported for the first time from Guerrero. Its distinctive characters are indicated, and information on its geographic distribution and phenology are provided Se da a conocer por primera vez la presencia de Abatia mexicana Standl. en el estado de Guerrero, donde crece en el bosque mesófilo de montaña. Se mencionan sus car...