Annona nutans

References

1. [1]Contributions from the United States National Herbarium Vol. 18 — Smithsonian Institute; Washington. · 1917 · http://www.biodiversitylibrary.org ↩︎Includes a treatment of the Annona. It can be downloaded from the Internet.
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]Diccionario das Plantas Uteis do Brasil — Correa M.P. · Imprensa Nacional; Rio de Janeiro · 1926 ↩︎A massive work in 6 volumes giving details of the various uses of Brazilian plants.
4. [4]Food Plants in the Americas: A Survey of the Domesticated, Cultivated, and Wild Plants Used for Human Food in North, — Kermath B.M.; Bennett B.C.' Pulsipher L.M. · 2014 ↩︎A pre-publication draft of an amazing, on-going work first started in 1985. It contains information on more than 3,900 taxa from the Americas - from Arctic regions to the Tropics