A new species and expanded distributions of freshwater Audouinella (Acrochaetiaceae, Rhodophyta) from Central Mexico and south-eastern Brazil

Eighteen collections of red-coloured Audouinella from Central Mexico and southeastern Brazil detected three species. The most common species, A. eugenea, is characterized by macroscopic thalli, the erect system consisting of filaments with cylindrical cells, undifferentiated into proximal and distal parts, and relatively large monosporangia (greater than or equal to 12.0 mum long). Spermatangia. and possible propagules were observed in some Mexican populations. This is the third Audouinella species observed to have gametangia and the first member of the Acrochaetiales with putative propagules. The second species, from Central Mexico, was characterized by the following features: macroscopic thalli, the erect system differentiated into proximal parts with cylindrical cells, unbranched or rarely branched, and distal parts with barrel-shaped cells, abundantly branched to form dense fascicles, with alternate or dichotomous branching, some at right-angles to the axis, and relatively large monosporangia (greater than or equal to 12.0 mum long). The morphologically distinct proximal and distal portions of the erect system, the latter forming dense fascicles, was a consistent character so far unknown in Audouinella; thus, we propose a new species, A. huastecana sp. nov. The third species is a microscopic epiphyte, A. meiospora, with a well-developed prostrate system composed of creeping and loosely aggregated filaments, and a short homogeneous erect system (less than or equal to 15 cells) of filaments with cylindrical or barrel-shaped cells and small monosporangia (less than or equal to 13.0 mum long). A. eugenea and A. meiospora are characterized for the first time from the Southern and Northern Hemispheres, respectively, both occurring mostly in areas of tropical or subtropical rainforests. A. meiospora is reported from new macroalgal hosts. A. eugenea and A. huastecana tended to occur in warm, alkaline waters with a high ion content that were moderate to fast flowing, whereas A. meiospora was not associated with particular habitats.

Revolutionaries and bandits: the Villista trajectory in the Mexican Revolution

In the last decades of the 1901 century the Mexican society went through a period of political and economical stability, and relative social tranquility. on contrast, during the revolutionary context various armed movements promoted the disruption of this status quo. In this article, by the analysis of several testimonies, I intend to show some aspects regarding criminality and violence phenomena, during the 1910 and 1920 years on the Northern Mexico.

From the capital surge to the financial crisis and beyond: the Mexican economy in the 1990s

Includes bibliography

Transforming sitting ducks into flying geese: the Mexican automobile industry

Includes bibliography

The Mexican maquila industry and the environment: an overview of the issues

Includes bibliography

The Mexican film industry and its participation in the global value chain

Includes bibliography

Mexican cement industry (technology, market structure and growth)

Includes bibliography

Divestiture and deregulation of public enterprises: the Mexican case

Includes bibliography

The Mexican road to change

Discurso pronunciado por el Secretario de Programación y Presupuesto de México el día 10 de mayo.

The Mexican economy at the end of the century

Includes bibliography

The potential of Mexican agriculture and options for the future

Includes bibliography

The Mexican peso crisis

Includes bibliography

The strategies pursued by Mexican firms in their efforts to become global players

Includes bibliography

The adjustment strategies of Mexican ejidatarios in the face of neoliberal reform

Includes bibliography

Measuring technological capabilities in Mexican industry

Includes bibliography