Psychotria mathewsii Standl.

First published in Publ. Field Mus. Nat. Hist., Bot. Ser. 4: 342 (1929)
This name is a synonym of Psychotria guianensis

POWO follows these authorities in synonymising this name:

  • Bernal, R., Gradstein, R.S. & Celis, M. (eds.) (2016). Catálogo de plantas y líquenes de Colombia 1-2: 1-3068. Libro impreso. [Cited as Psychotria ernestii.]
  • Taylor, C.M., Gereau, R.E. & Callmander, M. (2020). The identity of Mapouria (Rubiaceae, Psychotrieae). Taxon 69: 1072-1084. [Cited as Psychotria guianensis.]

This name was accepted following an alternative taxonomy by these authorities:

  • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew. [Cited as Psychotria mathewsii.]
  • Mendoza, H., Ramirez P., B.R. & Jimenez, L.C. (2004). Rubiaceae de Colombia: guia ilustrada de generos: 1-351. Instituto de Investigacion de Recursos Biologicos Alexander von Humboldt, Bogota, Colombia. [Cited as Psychotria mathewsii.]

Other Data

Other Kew resources that provide information on this taxon:


  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at and
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants.