Ptaeroxylaceae Juss. are a small family of Southern African indigenous trees and woody lianes, most of them from Madagascar, comprising only two genera. Such a family was not recognized by the APG II system of classification (2003), which noted that it was a synonym of Rutaceae. The APG III system of 2009, an updated version of the last system, did not mention the family. All species within this family are included within Rutaceae.
- Ptaeroxylon obliquum (Thunb.) Radlk. (Ptaeroxylon utile)
- "Rutaceae Juss., nom. cons.". Germplasm Resources Information Network. United States Department of Agriculture. 2003-01-17. Retrieved 2009-04-11.
- e-flora Ptaeroxylaceae by F. White and B. T. Styles
- Angiosperm Phylogeny Group (2003). An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II. Botanical Journal of the Linnean Society 141(4): 399-436. doi: 10.1046/j.1095-8339.2003.t01-1-00158.x
- Angiosperm Phylogeny Group (2009), "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III", Botanical Journal of the Linnean Society, 161 (2): 105–121, doi:10.1111/j.1095-8339.2009.00996.x, retrieved 2010-12-10
- www.ajol.info The chemistry of the Ptaeroxylaceae