Onychopetalum periquino

References

1. [1]Revision of the Neotropical Genera Bocageopsis, Onychopetalum and Unonopsis (Annonaceae) — Maas P.J.M. et al · 2007 · http://dx.doi.org/10.3767/000651907X608909 ↩︎
2. [2]Fruit Trees and Useful Plants in Amazonian Life — Shanley P.; Cymerys M.; Serra M.; Medina G. (Editors) · FAO, United Nations · 2011 · http://www.fao.org/docrep/015/i2360e/i2360e.pdf · ISBN 978-92-5-107007-9 ↩︎Quite a lot of information on a number of useful plants growing in the Amazon. It can be downloaded from the Internet.
3. [3]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.
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
5. [5]Descriptions of new genera and species of plants collected on the Mulford Biological Exploration of the Amazon Valle — Rusby H.H. · 1927 ↩︎