The “Herbier IRD de Guyane” (CAY) was established in 1965 by R.A.A. Oldeman and harbors nearly 200 000 specimens, mostly from French Guiana and nearby countries Suriname, Guyana, Brazil (particularly the state of Amapá), and Venezuela (state of Amazonas).  Since 2009, CAY has been attached to the Joint Research Unit (UMR) AMAP, which unites researchers from several French institutions (Cirad-Cnrs-INRA-IRD-Univ. Montpellier, see around a common theme. CAY is also one of the main scientific platforms of the Laboratoire of Excellence CEBA (Center for the study of biodiversity in Amazonia, see

The dataset presented here is the fruit of 30-years’ work by CAY’s staff as well as that of numerous other botanists who have helped make CAY a key scientific platform and leading center of botanical research for the Guiana Shield. 

Any use of data, even in part, for any kind of publication or other media, including but not limited to research activities, expertises, environmental impact studies and other forms of distribution, should cite this website (  Moreover, usage of any photo or other illustration found herein should mention the provenance, such as photographer if given, and this website should be cited. 

CAY’s computerization began in 1988 with its first database AUBLET (M. Hoff, G. Cremers, C. Feuillet and J.-J. de Granville), followed in 1997 by AUBLET2 (H. Chevillotte, G. Cremers, J.-J. de Granville, V. Bilot-Guérin, M. Hoff and J.-F. Molino). The latter allowed online publication of CAY’s data until 2013.   

This new website is based on Pl@ntNet-Publish, developed by the Pl@ntNet team (


  • Herbarium Curator: Sophie Gonzalez
  • Scientific Supervision: Jean-François Molino, Piero G. Delprete, S. Gonzalez
  • Database Management: Véronique Bilot-Guérin, Frédéric Théveny, J.-F. Molino
  • Other Staff: Jean-Louis Smock, Chantal Geniez, Dawn Frame
  • Web Design: Véronique Bilot-Guérin, Antoine Affouard

Pl@ntNet-Publish: Antoine Affouard, Julien Barbe

Specimens 138605

This website presents the specimens of vascular plants deposited at CAY. If present, geographic coordinates (in decimal form), are those of the locality, rounded to the nearest 1/100th.
Last update : February 1rst, 2017 Details