Resumen

SAGASTEGUI, Abundio  y  RODRIGUEZ, Eric F.. A new species of Pentacalia (Senecioneae: Asteraceae) from Northern Peru. Rev. peru biol. [online]. 2009, vol.16, n.2, pp.157-160. ISSN 1727-9933.

Pentacalia vallejiana Sagást. & E. Rodr. sp. nov. is described as a new species of Pentacalia Cassini (Senecioneae: Asteraceae) from the Department of La Libertad, Peru. This new species is apparently endemic to the province of Santiago de Chuco. Pentacalia vallejiana is a remarkable Peruvian species and peculiar within the genus. It is compared with its closest relative and data on its geographical distribution and ecology are provided.

Palabras clave : Pentacalia; Asteraceae; new species; Santiago de Chuco; La Libertad; Perú.

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