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Archontophoenicinae is a botanical subtribe consisting of four genera of palms, namely ''
Archontophoenix ''Archontophoenix'' is a plant genus comprising six palm species that are native to New South Wales and Queensland in eastern Australia. They are tall, slender and unbranched. Relationships between ''Archontophoenix'' and the other genera of subt ...
'' from
Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...
and
New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...
and '' Actinokentia'', '' Chambeyronia'' and ''
Kentiopsis ''Kentiopsis'' is a genus of palm trees endemic to New Caledonia. Relationships between ''Kentiopsis'' and the other genera of subtribe Archontophoenicinae, including the Australian ''Archontophoenix'' and the New Caledonia endemic ''Chambeyronia ...
'' from
New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st ...
. Phylogenetic relationships between the four genera are unresolved.Domenech, B., C. B. Asmussen-Lange, W. J. Baker, E. Alapetite, J. C. Pintaud, and S. Nadot. (2014) A Phylogenetic Analysis of Palm Subtribe Archontophoenicinae (Arecaceae) Based on 14 DNA Regions.” Botanical Journal of the Linnean Society 175 (4): 469–81.


Description

The palms in this subtribe are medium-sized palms, with well-developed, distinct
crownshaft An elongated circumferential leaf base formation present on some species of palm is called a crownshaft. The leaf bases of some pinnate leaved palms (most notable being ''Roystonea regia'' or the royal palm but also including the genera ''Areca' ...
s and strictly
pinnate Pinnation (also called pennation) is the arrangement of feather-like or multi-divided features arising from both sides of a common axis. Pinnation occurs in biological morphology, in crystals, such as some forms of ice or metal crystals, and in ...
leaves with generally short and massive petioles. The inflorescences are branched to two or three orders, with the prophyll and penduncular bracts similar. The subtribe is homogenous compared to other subtribes of the
Areceae Areceae is a palm tree tribe in the family Arecaceae. Subtribes: *Archontophoenicinae * Arecinae *Basseliniinae *Carpoxylinae *Clinospermatinae *Dypsidinae * Linospadicinae *Oncospermatinae *Ptychospermatinae *Rhopalostylidinae *Verschaffeltiina ...
. All the genera have more than six stamens. The New Caledonian genera have distinctive leaf anatomy and may share a common ancestor (Uhl and Dransfield 1987:367).


References

*Dransfield, John, Natalie W Uhl, Conny B Asmussen, William J Baker, Madeline M Harley, and Carl E Lewis (2005) A new phylogenetic classification of the palm family, Arecaceae. Kew Bulletin, Vol. 60 (2005). *Uhl, Natalie W. and Dransfield, John (1987) ''Genera Palmarum - A classification of palms based on the work of Harold E. Moore''. Lawrence, Kansas: Allen Press. / . *


References

{{Taxonbar, from=Q776519 Plant subtribes Australasian realm flora