Resumen

VILLARREAL-QUINTANILLA, José Á.  y  ESTRADA-CASTILLON, Andrés E.. Taxonomic rank changes and new nomenclatural combinations in three Mexican composites. Act. Bot. Mex [online]. 2010, n.91, pp.9-12. ISSN 2448-7589.

Acourtia dugesii (A. Gray) Reveal & R. M. King var. veracruzana (B. L. Turner) Villarreal & A. E. Estrada, Acourtia dugesii (A. Gray) Reveal & R. M. King var. queretarana (B. L. Turner) Villarreal & A. E. Estrada and Chaptalia lyratifolia Burkart var. estribensis (G. L. Nesom) Villarreal & A. E. Estrada, are proposed as taxonomic rank changes and new nomenclatural combinations for three Mexican taxa of Compositae.

Palabras llave : Acourtia; Chaptalia; Compositae; Mexico.