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A new variety of Senna birostris (Leguminosae, Caesalpinioideae) from Argentina

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Abstract

Senna birostris previously included seven varieties distributed mostly above 2000 m, in the Andes, between the equator and 33°S. According to Irwin & Barneby,Senna birostris var.hookeriana was the only variety in Argentina, distributed from the Jujuy province to the San Luis province. New observations led us to identify two distinct entities that have gone under this taxon. The new variety,Senna birostris var.jallaguensis, is described from Argentina and illustrated herein and is compared toSenna birostris var.hookeriana s.str.

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Authors and Affiliations

  1. Applied Botany, Plant Physiology and Plant Anatomy, Center of Environmental Research, UFT (Umweltforschung und Technologie), University of Bremen, Leobener Strasse, P.O. Box 33 04 40, D 28334, Bremen, Germany

    Cecilia Laporta

  2. Facultad Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón II, 4 piso, Lab. Plantas Vasculares, C1428EHA, Buenos Aires, Argentina

    Ramón A. Palacios & María Pía Mom

Authors
  1. Cecilia Laporta
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  2. Ramón A. Palacios
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  3. María Pía Mom
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Correspondence to Cecilia Laporta.

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Laporta, C., Palacios, R.A. & Mom, M.P. A new variety of Senna birostris (Leguminosae, Caesalpinioideae) from Argentina. Brittonia 58, 66–73 (2006). https://doi.org/10.1663/0007-196X(2006)58[66:ANVOSB]2.0.CO;2

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  • DOI: https://doi.org/10.1663/0007-196X(2006)58[66:ANVOSB]2.0.CO;2

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