| Table of contents Act. Bot. Mex n.80 Pátzcuaro Jul. 2007 Miguel Ángel Martínez Alfaro (1942-2007) Aguilar Contreras, Abigail
| | Meiotic analysis of a cross between cultivated (Helianthus annuus L. var. macrocarpus) and wild (Helianthus annuus L. ssp. texanus Heiser) sunflower Rodríguez de la Paz, Jesús; Gómez Martínez, Martha; Reyes Valdés, M. Humberto
| | New records of Pluteus Fr. (Basidiomycetes, Agaricales, Pluteaceae) in Mexico Rodríguez, Olivia; Guzmán-Dávalos, Laura
| | A new Tillandsia (Bromeliaceae) from the Sierra del Halo, Tecalitlán, Jalisco, Mexico Espejo Serna, Adolfo; López-Ferrari, Ana Rosa
| | Agave albopilosa (Agavaceae, subgenus Littaea, group Striatae), a new species from the Sierra Madre Oriental in northeastern Mexico Cabral Cordero, Ismael; Villarreal Quintanilla, José Ángel; Estrada Castillón, Eduardo A.
| | Floristic composition in pastures of Los Tuxtlas, Veracruz, Mexico Lira-Noriega, Andrés; Guevara, Sergio; Laborde, Javier; Sánchez-Ríos, Graciela
| | La vida en los desiertos mexicanos Carranza González, Eleazar
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