Polyosma

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Polyosma
Polyosma cunninghamii
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: (unplaced)
Family: Escalloniaceae
Genus: Polyosma
Blume
Species

About 60; see text.

Polyosma is a genus of about 60 species of trees native to south-east Asia. They occur from China south through south-east Asia to the east coast of Australia, and also in New Caledonia.

Its taxonomic placement has long been uncertain: it was traditionally placed in Grossulariaceae, but in the APG II system it was given its own family, Polyosmaceae, which was unplaced as to order within the euasterids II (campanulids) clade.[1] More recent research found Polyosmaceae to be a sister to the Escalloniaceae, so for simplicity's sake the Angiosperm Phylogeny Website now recommends the latter family be expanded to include this genus.[2]

Species include:

  • Polyosma alangiacea F.Muell. – White Alder[3]
  • Polyosma brachyandrum Domin[3]
  • Polyosma brachystachys Schltr.[4]
  • Polyosma cambodiana Gagnepain – dou xian mu[5]
  • Polyosma comptonii Baker f.[4]
  • Polyosma cunninghamii Benn.[3]
  • Polyosma discolor Baill.[4]
  • Polyosma hirsuta C.T.White – Alder[3]
  • Polyosma integrifolia Blume[5]
  • Polyosma leratii Guillaumin[4]
  • Polyosma pancheri Baill.[4]
  • Polyosma podophylla Schltr.[4]
  • Polyosma reducta F.Muell.[3]
  • Polyosma rhytophloia C.T.White & W.D.Francis[3]
  • Polyosma rigidiuscula F.Muell. & F.M.Bailey[3]
  • Polyosma spicata Baill.[4]

References

  1. ↑ 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. 
  2. ↑ Stevens, P (2001 onwards). "Angiosperm Phylogeny Website". Missouri Botanical Garden. Retrieved 2009-02-04. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 "Polyosma". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. Retrieved 2009-02-05. 
  4. ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 "Genre Polyosma". Endémía - Faune & Flore de Nouvelle-Calédonie. Retrieved 2009-02-05. 
  5. ↑ 5.0 5.1 "Polyosma cambodiana Gagnepain". Flora of China. www.efloras.org. Retrieved 2009-02-05. 
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