Helicostylis scabra

References

1. [1]Brazilian Trees. Volume 3. — Lorenzi. H. · Instituto Plantarum De Estudos Da Flora; Brazil. · 2009 · ISBN 85-86714-34-4 ↩︎Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
2. [2]Fruits of the Guianan Flora — van Roosmalen. M.G.M. · Institute of Systematic Boyany, Utrecht University; Netherlands. · 1985 · ISBN 90-9000988-4 ↩︎Terse descriptions of over 1,700 species from the Guianas that bear fruits - not necessarily edible! Often mentions if the fruit is edible, plus gives brief description of habit and habitat.
3. [3]Botanical Museum Leaflets Vol 29 — Harvard University; Cambridge, Massachusetts. · 1983 · http://www.biodiversitylibrary.org ↩︎Some interesting notes on plant uses in tropical America. It can be downloaded from the Internet.
4. [4]Botanical Museum Leaflets Vol 26 — Harvard University; Cambridge, Mass. · 1978 · http://www.biodiversitylibrary.org ↩︎A series of botanical leaflets. It can be downloaded from the Internet.