SciELO - Scientific Electronic Library Online

 número97Una especie nueva de Mimulus L. (Sección Simiolus, Phrymaceae) del noreste de Michoacán, MéxicoNuevas combinaciones en Orchidaceae índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Acta botánica mexicana

versión impresa ISSN 0187-7151


RAMIREZ -NOYA, David; GONZALEZ -ELIZONDO, M. Socorro  y  MOLINA -TORRES, Jorge. Heliopsis suffruticosa (Compositae, Heliantheae), a new species from western Zacatecas. Act. Bot. Mex [online]. 2011, n.97, pp. 39-47. ISSN 0187-7151.

Heliopsis suffruticosa is described from the Sierra de Sombrerete, in western Zacatecas, Mexico, growing in pinyon woodland on limestone. It differs from other species in the genus in having suffruticose habit, narrowly lanceolate to linear leaves with entire to sparsely serrulated margin, and peduncles gradually enlarged towards the apex, a combination of characters shared with some species of Zinnia. A key to distinguish among the Mexican species of perennial Heliopsis is presented. As other Heliopsis species, H. suffruticosa roots contain alkamides, in this case five diacetylenic conjugated next to a group methyl in the omega position, isobutyl alkamides.

Palabras llave : alkamides; Compositae; endemism; Heliantheae; Heliopsis.

        · resumen en Español     · texto en Español     · Español ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License