Kew Bulletin

, Volume 65, Issue 2, pp 209–220 | Cite as

Three new legumes endemic to the Marañón Valley, Perú

  • G. P. Lewis
  • C. E. Hughes
  • A. Daza Yomona
  • J. Solange Sotuyo
  • M. F. Simon


Two new species of legume, Caesalpinia celendiniana and Mimosa lamolina and one new variety, Caesalpinia pluviosa var. maraniona, from the inter-Andean Río Marañón Valley in northern Perú are described and illustrated. These add to the already impressive tally of endemics known from the seasonally dry tropical forests of the Río Marañón Valley, which apparently far exceeds the endemic plant diversity from other nearby inter-Andean dry valleys in Perú and southern Ecuador.

Key Words

Caesalpinia Caesalpinioideae endemic Fabaceae Leguminosae Mimosa Mimosoideae Perú 



We thank Carlos Reynel and Jose Luis Marcelo for on-going support in Perú, Rosemary Wise for the Mimosa illustration, Pat Halliday for the two Caesalpinia illustrations, Terry Pennington for assistance with transport for fieldwork, Tiina Särkinen and Hervé Vandrot for seeking and collecting fruiting material of Mimosa lamolina in Perú in 2008, Toby Pennington for providing photographs and additional collections of Caesalpinia pluviosa var. maraniona, and Katherine Challis and Melanie Thomas for preparing the Latin diagnoses. Brian Schrire and an unknown reviewer provided constructive comments that improved the text. C. Hughes was supported by a Royal Society University Research Fellowship, J. Sotuyo by a Kew Latin American Research Fellowship (KLARF), and G. Lewis was partly supported by National Science Foundation grant DEB-0316375.


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Copyright information

© The Board of Trustees of the Royal Botanic Gardens, Kew 2010

Authors and Affiliations

  • G. P. Lewis
    • 1
  • C. E. Hughes
    • 2
    • 3
  • A. Daza Yomona
    • 4
  • J. Solange Sotuyo
    • 5
  • M. F. Simon
    • 2
    • 6
  1. 1.Herbarium, Library, Art and ArchivesRoyal Botanic GardensSurreyUK
  2. 2.Department of Plant SciencesUniversity of OxfordOxfordUK
  3. 3.Institute for Systematic BotanyZurichSwitzerland
  4. 4.Herbario MOL, Departamento de Manejo Forestal, Facultad de Ciencias ForestalesUniversidad Nacional Agraria La MolinaLimaPerú
  5. 5.Departamento de BotánicaInstituto de Biología, U.N.A.M.Distrito FederalMéxico
  6. 6.EmbrapaBrasilia-DFBrazil

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