Resumen

AYMARD C., GERARDO A.  y  BAREA PASTORE, JOSÉ F.. A new species of Acanthocladus (Polygalaceae) from Colombia. Caldasia [online]. 2009, vol.31, n.1, pp.13-17. ISSN 0366-5232.

A new species of Acanthocladus Klotzsch ex Hassk. was found during the preparation of the Polygalaceae treatment for the Catalogue of the Plants of Colombia. Acanthocladus colombianus from the inter-Andean arid valley of Cundinamarca department, Colombian Andes, is described, illustrated, and its morphological relationships with allied species are discussed. This new species is similar to Acanthocladus guayaquilensis B. Eriksen & Ståhl., but can be distinguished by its habit: a tree with terete branches, larger and rigid-coriaceous leaves , with 6--9 lateral veins, sessile inflorescences, and sepals of the outer whorl pilose, 3--4 x 3--4 mm. This species represents the first record of this genus for the Andes.

Palabras clave : Inter-Andean arid valley; Acanthocladus; Polygalaceae; Cundinamarca; Colombian flora.

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