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A new species of Securidaca (Polygalaceae) from sandstone outcrops in the Venezuelan Andes

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Abstract

A new species ofSecuridaca was found during the preparation of the Polygalaceae treatment for theNuevo Catálogo de la Flora de Venezuela.Securidaca fundacionensis, from La Fundación, in the Venezuelan Andes, is described, illustrated, and its morphological relationship with an allied species is discussed. This new species is similar toS. uniflora, but it differs by its terete branches; broadly ovate leaves; larger petioles, flowers, fruits; and flabellate-crested keel (abaxial) petal. An updated key to the 27 Venezuelan species ofSecuridaca is presented, and phytogeographical information about La Fundación is provided.

Resumen

Una nueva especie del géneroSecuridaca fue encontrada durante la elaboración del tratamiento de la familia Polygalaceae para elNuevo, Catálogo de la Flora de Venezuela.Securidaca fundacionensis, del sector La Fundación, estado Táchira, Andes de Venezuela, es descrita, ilustrada y sus relaciones morfológicas con su especie afín son discutidas.S. fundacionensis es similar aS. uniflora, sin embargo, difiere de esta especie por poseer las ramas teretes; las hojas ampliamente ovadas; los pecíolos, las flores, y los frutos más grandes; y la quilla (el pétalo inferior) con una cresta flabelada. Se presenta una clave actualizada para diferenciar las 27 especies del géneroSecuridaca presentes en Venezuela y información general acerca la fitogeografía del sector La Fundación.

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Authors and Affiliations

  1. UNELLEZ-Guanare Programa de R. N. R., Herbario Universitario (PORT), 3350, Mesa de Cavacas, Estado Portuguesa, Venezuela

    Gerardo A. Aymard

  2. The New York Botanical Garden, 200th Street and Kazimiroff Boulevard, 10458-5126, Bronx, NY, USA

    Lisa M. Campbell

Authors
  1. Gerardo A. Aymard
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  2. Lisa M. Campbell
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Correspondence to Gerardo A. Aymard.

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Aymard, G.A., Campbell, L.M. A new species of Securidaca (Polygalaceae) from sandstone outcrops in the Venezuelan Andes. Brittonia 59, 328–333 (2007). https://doi.org/10.1007/BF03159548

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