The "APWeb" is in the order of Crossosomatales, a choice which was confirmed by the "APGIII".
Molecular evidence has shown that Strasburgeria robusta is a sister taxon of Ixerba brexioides, endemic to New Zealand. While both species share a base chromosome number of x = 25, I. brexioides is diploid (2n = 2x = 50), S. robusta is icosaploid (2n = 20x = 500). The massive polyploidy in S. robusta may have furthered the adaptations that let it survive on the ultramafic substrates found in the montane forest of New Caledonia.
List of genera
- Oginuma, K.; Munzinger, J.; Tobe, H. (2006), "Exceedingly high chromosome number in Strasburgeriaceae, a monotypic family endemic to New Caledonia", Plant Systematics and Evolution 262: 97–101, doi:10.1007/s00606-006-0451-8
- Staphyleaceae in L. Watson and M.J. Dallwitz (1992 onwards). The families of flowering plants.
|This rosid article is a stub. You can help Wikipedia by expanding it.|