Oncotheca

Oncotheca is a genus of tree endemic to New Caledonia. There are two species,[3][4] Oncotheca balansae and Oncotheca humboldtiana.

Oncotheca
refer to caption
Oncotheca humboldtiana herbarium specimen
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Icacinales
Family: Oncothecaceae
Kobuski ex Airy Shaw[1]
Genus: Oncotheca
Baill.[2]
Species[2]
  • Oncotheca balansae Baill.
  • Oncotheca humboldtiana (Guillaumin) Morat & Veillon

Oncotheca is the sole genus of the Oncothecaceae, which is one of three families of flowering plants endemic to New Caledonia. Its placement has been enigmatic for a long time, but a recent phylogenetic analysis[5] based on 73 plastid genes found it to be sister to Icacinaceae. It is now placed in the order Icacinales.[6][7]

References
  1. 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.
  2. POWO (2023). "Oncotheca Baill". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2 January 2023.
  3. Morat, P., and J. M. Veillon. (1988). Oncothecaceae. In Flore de La Nouvelle-Calédonie et Dépendances, edited by P. Morat and H. S. MacKee, 15:90–98. Paris: Muséum National d’Histoire Naturelle.
  4. Morat, P., T. Jaffré, F. Tronchet, J. Munzinger, Y. Pillon, J. M. Veillon, and M. Chalopin (2012). The taxonomic reference base Florical and characteristics of the native vascular flora of New Caledonia. Adansonia 34 (2): 179–221. https://dx.doi.org/10.5252/a2012n2a1
  5. Stull, G. W., R. Duno de Stefano, D. E. Soltis, and P. S. Soltis. (2015). Resolving Basal Lamiid Phylogeny and the Circumscription of Icacinaceae with a Plastome-Scale Data Set.” American Journal of Botany 102 (11): 1794–1813. doi:10.3732/ajb.1500298.
  6. Angiosperm Phylogeny Group (2016). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV". Botanical Journal of the Linnean Society. 181 (1): 1–20. doi:10.1111/boj.12385.
  7. Stevens, P.F. "Oncothecaceae". Angiosperm Phylogeny Website.


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