Randia echinocarpa

References

1. [1]Flora de Guerrero; No. 35. Coussareae, Gardenieae, Hedyotideae, Mussaendeae, Naucleae, Rondeletieae (Rubiaceae) — Borhidi A. & Diego-Pérez N. · D. R. Universidad Nacional Autónoma de México; Mexico · 2008 · ISBN 978-607-2-00034-6 ↩︎A very good flora, in Spanish, it often also lists plant uses. All published volumes have been made available to download.
2. [2]IUCN Red List of Threatened Species — http://www.iucnredlist.org/ ↩︎A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
3. [3]Trees and Shrubs of Mexico — Standley P.C. · Smithsonian Institution; Washington · 1926 ↩︎Although dated, it contains a wealth of information on the trees and shrubs of Mexico, including many of their uses. It can be downloaded from the Internet.
4. [4]Cornucopia II — Facciola. S. · Kampong Publications, California. · 1998 · ISBN 0-9628087-2-5 ↩︎The second edition of an excellent guide to the edible uses of plants, though it does not give any details of cultivation etc.
5. [5]Rio Mayo Plants - A study of the flora and vegetation of the valley of the Rio Mayo, Sonora — Gentry H.S. · Carnegie Institution of Washington; Washington DC · 1942 ↩︎One of my favourite authors on native plants, often including their uses. This is an excellent example with lots of information, even though the book is 80 years old.
6. [6]Biblioteca Digital de la Medicina Tradicional Mexicana — http://www.medicinatradicionalmexicana.unam.mx/index.php ↩︎A very valuable on-line resource with detailed information on many hundreds of medicinal plants used in Mexico