| Table of contents Act. Bot. Mex n.76 Pátzcuaro Jul. 2006 Taxonomic revision of the Acutifoliae complex of Quercus (Fagaceae) with emphasis in its representation in Mexico Romero Rangel, Silvia
| | Pollen viability in a cultivated sunflower line, wild sunflower (Helianthus annuus L. ssp. texanus Heiser) and their hybrid progeny Mendoza Villarreal, Rosalinda; Reyes-Valdés, M. Humberto; Espinosa Zapata, Carlos; Villarreal Quintanilla, José Ángel
| | Tigridia pugana (Iridaceae: Tigridieae), a new species from Jalisco, Mexico Rodríguez, Aarón; Ortiz-Catedral, Luis
| | Gymnopilus tuxtlensis (Basidiomycetes, Agaricales), a tropical species known from Mexico and South America Guzmán-Dávalos, Laura; Herrera, María de Jesús; Cardona, Beatriz E.; Saldarriaga, Yamillé
| | Circunscription of Tillandsia chaetophylla Mez and description of Tillandsia sessemocinoi (Bromeliaceae: Tillandsioideae) López-Ferrari, Ana Rosa; Espejo Serna, Adolfo; Blanco Fernández de Caleya, Paloma
| | The genus Houssayanthus (Sapindaceae) in Mexico Rzedowski, Jerzy; Calderón de Rzedowski, Graciela
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