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Salazar G.A.,National Autonomous University of Mexico | Chavez-Rendon C.,Centro Cultural Santo Domingo | Jimenez-Machorro R.,Herbario AMO | Avila A.D.,Centro Cultural Santo Domingo
Systematic Botany | Year: 2011

Galeoglossum cactorum, a new species of Orchidaceae from the Mixteca Alta region in the state of Oaxaca, Mexico, is described and illustrated. The new species is florally similar to G. thysanochilum but differs from it in the linear-oblanceolate leaves subtended by imbricating, dark brown cataphylls, presence of a papillose thickening near the base of the labellum, proportionately shorter, obtrapezoid column with lateral laminar wings and complete fusion of the filament, and prominent apicule of the rostellum remnant. A cladistic parsimony analysis of DNA sequences of nuclear ITS region and plastid matK-trnK region showed that the three currently recognized species of Galeoglossum form a monophyletic group, which is sister to Prescottia. Galeoglossum cactorum is known from a single locality in an unusual habitat for orchids, i.e. a xerophilous scrub dominated by columnar cacti of the genus Neobuxbaumia, whereas both G. thysanochilum and G. tubulosum dwell in oak- and pine-oak forest. © Copyright 2011 by the American Society of Plant Taxonomists.


Ramirez-Gonzalez C.G.,Centro Interdisciplinario Of Investigacion Para El Desarrollo Integral Regional | Canseco-Marquez L.,National Autonomous University of Mexico | Canseco-Marquez L.,Centro Cultural Santo Domingo
Revista Mexicana de Biodiversidad | Year: 2015

The presence of the turtle Chelydra rossignonii for Oaxaca is confirmed, from Río Sarabia, in the gulf drainages, at the locality of San Isidro Lachigushe. © 2015 Universidad Nacional Autonoma de Mexico, Instituto de Biologia.


Garcia-Mendoza A.J.,National Autonomous University of Mexico | Chavez-Rendon C.,Centro Cultural Santo Domingo
Revista Mexicana de Biodiversidad | Year: 2013

Agave kavandivi from the Mixteca Alta region, state of Oaxaca, Mexico is described as new and illustrated. It belongs to subgenus Littaea (Tagliabue) Baker, group Striatae Baker. It is compared with A. dasylirioides Jacobi et C. D.Bouché, A. stricta Salm-Dyck and A. rzedowskiana P. Carrillo, R. Vega et R. Delgad.


Chavez-Lugo E.G.,University of Veracruz | Pech-Canche J.M.,University of Veracruz | Canseco-Marquez L.,National Autonomous University of Mexico | Canseco-Marquez L.,Centro Cultural Santo Domingo | Lucas-Cobos L.,University of Veracruz
Revista Mexicana de Biodiversidad | Year: 2015

Mexico is one of the countries where species richness of reptiles is greater; however their basic ecology and current distribution areas are unknown for many of them. In this study we report the presence of Coleonyx elegans, which is a lizard species protected by the Mexican environmental regulation, in northern Veracruz, increasing by 100 km its known distribution. © 2015 Universidad Nacional Autónoma de México, Instituto de Biología.

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