Cocoseae

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Cocoseae
Cocotierjeune.jpg
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Arecales
Family: Arecaceae
Subfamily: Arecoideae
Tribe: Cocoseae
Mart. ex Dumort.
Genera

See text

Cocoseae is a tribe of cocosoid palms of the family Arecaceae.[1][2]

Description

The fruit of the Cocoseae is a modified drupe, with a sclerenchymatous epicarp and a highly developed mesocarp, formed mainly by parenchyma . The endocarp is generally sclerenchymatous and protects the seeds from predation and drying. The most obvious synapomorphy of the species of this tribe is the presence, in the endocarp, of three or more "eyes" or pores of germination.[3]

Distribution

The Cocoseae are distributed mainly in the Neotropical regions, with two genera endemic to Africa (Jubaeopsis and Elaeis) and Madagascar ( Beccariophoenix and Voanioala ), respectively.

Systematics

The Cocoseae in the sense of Dransfield et al. (2008) are identified as natural relatives (Monophylum) in most studies. Their systematic position within the Arecoideae is still unclear. Different studies see them as a sister group of the Reinhardtieae, as a sister group of the group from Reinhardtieae and Roystoneeae, or as a sister group of the Oranieae.

The Tribe is divided into three sub-tribes. All three are monophyletic. Bactridinae and Elaeidinae are sister groups

Genera

Subtribe Image Genus Extant species
Beccariophoenicinae J.Dransf. & Uhl Beccariophoenix.jpg Beccariophoenix Jum. & H.Perrier
Butiinae Saakov Polyandrococos caudescens — Alex Popovkin 003.jpg Allagoptera Nees
Butia capitata Madrid.jpg Butia (Becc.) Becc (Jelly palms)
Jubaea chilensis Hyères gross.jpg Jubaea Kunth
Jubaeopsis caffra.jpg Jubaeopsis Becc.
1859-Martinique.web.jpg Cocos L.
Arecastrum romanzoffianum 2c.JPG Syagrus Mart.
56 species:
Lytocaryum wedellianum in Lyon Arboretum.jpg Lytocaryum Toledo
Parajubaea torallyi kz1.jpg Parajubaea Burret
Voanioala J. Dransf.
Attaleinae Drude Attalea brasiliensis.jpg Attalea Kunth
Elaeidinae Hook.f. Barcella (Trail) Trail ex Drude
Elaeis guineensis - Fruit and Spice Park - Homestead, Florida - DSC09011.jpg Elaeis Jacq.
Bactridinae Drude Macauba 250710 REFON 2.JPG Acrocomia Mart.
Aiphanes minima (Aiphanes erosa) - Fruit and Spice Park - Homestead, Florida - DSC08942.jpg Aiphanes Willd.
29 species:
Astrocaryum mexicanum - Marie Selby Botanical Gardens - Sarasota, Florida - DSC01156.jpg Astrocaryum G.Mey.
Atitara (Trail) Trail ex Drude
Bactris gasipaes Kunth - Flickr - Alex Popovkin, Bahia, Brazil (8).jpg Bactris Jacq. ex Scop.
78 species:
Desmoncus orthacanthos Mart. - Flickr - Alex Popovkin, Bahia, Brazil (24).jpg Desmoncus (Trail) Trail ex Drude
24 species:

References

  1. ^ Baker, William J.; Dransfield, John (2016). "Beyond Genera Palmarum: progress and prospects in palm systematics". Botanical Journal of the Linnean Society. 182 (2): 207–233. doi:10.1111/boj.12401.
  2. ^ Dransfield, John; Uhl, Natalie W.; Asmussen, Conny B.; Baker, William J.; Harley, Madeline M.; Lewis, Carl E. (2008). Genera Palmarum: The Evolution and Classification of Palms. Royal Botanic Gardens, Kew. ISBN 978-1-84246-182-2.
  3. ^ Gunn BF (Feb 2004). "The Phylogeny of the Cocoeae (Arecaceae) with Emphasis on Cocos nucifera". Annals of the Missouri Botanical Garden. 91 (3): 505–522. ISSN 0026-6493.
  4. ^ Canteiro, C. 2021. Acrocomia totai. The IUCN Red List of Threatened Species 2021: e.T111452251A161420865. https://dx.doi.org/10.2305/IUCN.UK.2021-2.RLTS.T111452251A161420865.en. Accessed on 27 October 2022.

External links

  • Media related to Cocoseae at Wikimedia Commons
  • Data related to Cocoseae at Wikispecies

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