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Borhidi A.,University of Pecs | Salas-Morales S.,Sociedad Para El Estudio de Los Recursos Bioticos de Oaxaca SERBO
Acta Botanica Hungarica

A new species named as Borreria myrtilloides (Spermacoceae tribe) was collected in the State Oaxaca (South Mexico) in the framework of the collecting program of SERBO. It is related to B. nesiotica B. L. Rob. of Baja California and the Socorro Island, but differs from all similar species by having perennial to subfrutescent habit, very small shiny leaves without lateral veins. It grows in pine-oak forests at an altitude of 2,000 m above sea level, forming a dense subshrubby herb layer. The new taxon may be an endemic one to the Flora of Mexico. Source

Vite A.,Autonomous University of the State of Hidalgo | Pulido M.T.,Autonomous University of the State of Hidalgo | Flores-Vazquez J.C.,Sociedad Para El Estudio de Los Recursos Bioticos de Oaxaca SERBO
Revista de Biologia Tropical

Mexico has the second largest cycad diversity in the world, and the Sierra Madre Oriental (SMO) is one of the richest biogeographic regions for these plants. Despite there is a general Cycad National Program in the country, there are no state-level cycad conservation strategies or programs. Thus the aim of this study was to propose a cycad conservation strategy for the state of Hidalgo, which is located in the Southern part of the SMO. For this, a cycad species inventory was made in the state, for which three methods were used: review of published literature; consultation in the main Mexican herbaria to verify botanical specimens; and exhaustive field research to compare findings with previously reported species and to recognize new records at the county and state level. The proposed research work strategy combined the following elements: prioritize the county and local areas with greatest cycad species richness; prioritize the species least resistant to environmental change and/or having restricted geographic distribution; and to consider the main uses of these plants by local residents. The results showed that Hidalgo has three genera and eight species of cycads: Ceratozamia fuscoviridis, C. latifolia, C. mex-icana, C. sabatoi, Dioon edule, Zamia fischeri, Z. loddigesii and Z. vazquezii, all of which are considered by the International Union for Conservation of Nature (IUCN). This study added two new species records for Hidalgo and 21 at the county level. The species are distributed in 26 counties, of which Chapulhuacán and Pisaflores are notable for their high species richness. Hidalgo has the fourth-greatest cycad species richness among Mexican states, although its area accounts for only 1.07% of the country. The state's diversity is greater than in other states with larger area, and even than in some other entire countries in Mesoamerica. The presented state cycad conservation strategy proposes that a total of some 11 325ha to be conserved in nine zones, including different vegetation types, distributed in seven counties. The strategy involves a mixed scheme that incorporates conservation in Protected Natural Areas (ANP), Small Farmer Reserves (Reservas Campesinas) and Environmental Management Units (UMA in Spanish). This proposal will be useful for government agencies to take into account in the process of designating land use for the Cloud Forest Biological Corridor (CBBMM in Spanish), a ANP in creation. The state of Hidalgo urgently needs a detailed analysis of trends in changes in vegetation cover and land use, and demographic studies of the cycads. It is recommended that the implementation phase of this state strategy be carried out jointly with local communities, academia, and state and federal agencies responsible for biodiversity conservation. Source

Two new species of the genus Deppea. Schltdl. et Cham. were collected in the Putla district of Oaxaca state, near to the Oaxaca-Guerrero border near to the southern end of the eastern wing of the Sierra Madre Occidental, both species belong to the group characterised by flowers of funnel-shaped corolla with longer tube than the corolla lobes, short filaments and included anthers in the throat, features different from those of the type species D. erythrorhiza and related species with rotated flowers with short tube and long corolla lobes, long exerted filaments and anthers. Based on the mentioned floral-morphological differences - similar to those detected formerly in the genus Edithea Standl. - a new section is established for a group of five species under the name Paradeppea. © 2010 Akadémiai Kiadó. Source

Two new species of the family Rubiaceae were collected by the members of the Society for the Study of Biotic Resources of Oaxaca (SERBO) in the state Oaxaca (México). One of them is the Arachnothryx sanchezii shrub with scandent twigs and broadly spiked inflorescences, related to A. heteranthera, belonging to the Guettardeae tribe according the new molecular studies of Rova et al. (2009). The other species is Bouvardia mitlensis, a low dense shrub with small leaves and plentiful small white flowers belonging to the Bouvardioides section, near to B. erecta and B. rosei. © 2010 Akadémiai Kiadó. Source

Borhidi A.,University of Pecs | Martinez Salas E.,National Autonomous University of Mexico | Salas-Morales S.,Sociedad Para El Estudio de Los Recursos Bioticos de Oaxaca SERBO
Acta Botanica Hungarica

The monographic treatment of the genus Deppea Schltdl. et Cham. published in 1988 by Lorence and Dwyer turned to be a broad sense approach with 23 species, including several alien elements and forming a polyphyletic unit. It was criticised by Borhidi et al. (2004) excluding 6 species belonging to 5 different genera. Since that time a number of real Deppea species of original sense has been discovered and described. Actually, the genus comprises 31 species without the excluded ones. In this volume 6 new species, in this paper 4 new ones: D. foliosa, D. nitida, D. rubrinervis, D. tubaeana and a new combination, D. arachnipoda are published, followed by a rectified generic description and a new analytic key. © 2010 Akadémiai Kiadó. Source

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