Primary references

• Dwyer, J.D. 1944. Philacra, a new genus of the Ochnaceae. Brittonia 5: 124–127. DOI: 10.2307/2804747 JSTOR Reference page. 

Additional references

• Feres, F. 2006. Estudos taxonômicos em Philacra Dwyer (Ochnaceae). Acta Scientiarum. Biological Sciences 28(3): 183–187. DOI: 10.4025/actascibiolsci.v28i3.191 Reference page. 

• Sastre, C. 2003. Ochnaceae. Pp. 124–161 in Steyermark, J.A. (†), Berry, P.E., Yatskievych, K. & Holst, B.K. (eds.), Flora of the Venezuelan Guayana, Vol. 7, Myrtaceae–Plumbaginaceae. Missouri Botanical Garden Press, St. Louis. ISBN 0-930723-13-9. Reference page. 

• Sastre, C. 2007. Ochnaceae. In Funk, V., Hollowell, T., Berry, P., Kelloff, C. & Alexander, S.N., Checklist of the plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana). Contributions from the United States National Herbarium 55: 445–449. BHL Reference page. 

Links

• International Plant Names Index. 2019. Philacra. Published online. Accessed 02 February 2019.

• Farr, E.R. & Zijlstra, G. (eds.) 1996 onwards. Philacra in Index Nominum Genericorum (Plantarum). Accessed: 2019 February 02.

• GBIF

• USDA, ARS, Germplasm Resources Information Network. Philacra in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed on 2019-02-02.

• Hassler, M. 2019. Philacra. World Plants: Synonymic Checklists of the Vascular Plants of the World (2019). In: Roskov Y., Abucay L., Orrell T., Nicolson D., Bailly N., Kirk P., Bourgoin T., DeWalt R.E., Decock W., De Wever A., Nieukerken E. van, Zarucchi, J., Penev L., eds. 2019. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2019 February 02.

• Tropicos.org 2019. Philacra. Missouri Botanical Garden. Published on the internet. Accessed: 02 February 2019.

• Philacra in Flora do Brasil 2020 em construção. Jardim Botânico do Rio de Janeiro. Accessed 02 February 2019.