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Pelagodoxa henryana

Pelagodoxa henryana is a species of palm tree. It is native to French Polynesia, where it survives on Nuku Hiva in the Marquesas Islands. A population on Raivavae in the Tubuai Islands is presumed extinct.[2] The species is threatened by habitat loss.[1]

Pelagodoxa henryana
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Arecales
Family: Arecaceae
Subfamily: Arecoideae
Tribe: Pelagodoxeae
Genus: Pelagodoxa
Species:
P. henryana
Binomial name
Pelagodoxa henryana
Becc. (1917)

Description edit

Pelagodoxa henryana grows to 12 meters tall, with a smooth brown trunk up to 15 cm in diameter marked by ring-like leaf scars. The crown consists of 15 to 20 large leaves, ascending to drooping. Leaves are up to 2.35 meters long and 1.5 meters wide, with a central rachis. Trees bear 12 to 15 inflorescences, each of which holds 15 to 30 mature fruits. Fruits are nearly spherical, 85–99 mm in diameter. They are covered in a corky exocarp which splits into irregular pyramidal warts.[3]

Range and habitat edit

The plant was described by Odoardo Beccari in 1917, from seeds, notes, and photographs gathered on Fatu Hiva by Charles Henry in 1916, likely in the Taipivai Valley. The trees grow in disturbed lowland rain forest near the Teuakueenui waterfall. In 2012 a second population was discovered in the Hatihe'u valley. Both populations are from 140 to 300 meters elevation in lowland wet forest dominated by the trees Hibiscus tiliaceus, Inocarpus fagifer, and coconut (Cocos nucifera). Trees recorded in the 1920s at Unurau and Temahara on the island of Raivavae were gone by the 1980s. Both of the Fatu Hiva populations were discovered near old house sites, and the Raivavae populations were discovered at ritual marae sites, suggesting that these populations may have been established by humans.[3]

Conservation edit

Because of the small number and size of the remaining populations, and the vulnerability of its remaining habitat to human disturbance, the species is assessed as Critically Endangered.[1] The tree is now cultivated in gardens on the high islands of French Polynesia, including the Marquesas, Society, and Gambier islands, and in Singapore, Hawaii, Australia, and elsewhere.[3]

References edit

  1. ^ a b c Johnson, D. (1998). "Pelagodoxa henryana". IUCN Red List of Threatened Species. 1998: e.T38627A10140239. doi:10.2305/IUCN.UK.1998.RLTS.T38627A10140239.en. Retrieved 29 May 2023.
  2. ^ Pelagodoxa henryana Becc. Plants of the World Online. Retrieved 27 May 2023.
  3. ^ a b c Hodel, Donald R. (2019). "Reassessment of Pelagodoxa" (PDF). Palms. 63 (3): 113–146. Retrieved 29 May 2023.


pelagodoxa, henryana, species, palm, tree, native, french, polynesia, where, survives, nuku, hiva, marquesas, islands, population, raivavae, tubuai, islands, presumed, extinct, species, threatened, habitat, loss, conservation, statuscritically, endangered, iuc. Pelagodoxa henryana is a species of palm tree It is native to French Polynesia where it survives on Nuku Hiva in the Marquesas Islands A population on Raivavae in the Tubuai Islands is presumed extinct 2 The species is threatened by habitat loss 1 Pelagodoxa henryanaConservation statusCritically Endangered IUCN 2 3 1 Scientific classificationKingdom PlantaeClade TracheophytesClade AngiospermsClade MonocotsClade CommelinidsOrder ArecalesFamily ArecaceaeSubfamily ArecoideaeTribe PelagodoxeaeGenus PelagodoxaSpecies P henryanaBinomial namePelagodoxa henryanaBecc 1917 Contents 1 Description 2 Range and habitat 3 Conservation 4 ReferencesDescription editPelagodoxa henryana grows to 12 meters tall with a smooth brown trunk up to 15 cm in diameter marked by ring like leaf scars The crown consists of 15 to 20 large leaves ascending to drooping Leaves are up to 2 35 meters long and 1 5 meters wide with a central rachis Trees bear 12 to 15 inflorescences each of which holds 15 to 30 mature fruits Fruits are nearly spherical 85 99 mm in diameter They are covered in a corky exocarp which splits into irregular pyramidal warts 3 Range and habitat editThe plant was described by Odoardo Beccari in 1917 from seeds notes and photographs gathered on Fatu Hiva by Charles Henry in 1916 likely in the Taipivai Valley The trees grow in disturbed lowland rain forest near the Teuakueenui waterfall In 2012 a second population was discovered in the Hatihe u valley Both populations are from 140 to 300 meters elevation in lowland wet forest dominated by the trees Hibiscus tiliaceus Inocarpus fagifer and coconut Cocos nucifera Trees recorded in the 1920s at Unurau and Temahara on the island of Raivavae were gone by the 1980s Both of the Fatu Hiva populations were discovered near old house sites and the Raivavae populations were discovered at ritual marae sites suggesting that these populations may have been established by humans 3 Conservation editBecause of the small number and size of the remaining populations and the vulnerability of its remaining habitat to human disturbance the species is assessed as Critically Endangered 1 The tree is now cultivated in gardens on the high islands of French Polynesia including the Marquesas Society and Gambier islands and in Singapore Hawaii Australia and elsewhere 3 References edit a b c Johnson D 1998 Pelagodoxa henryana IUCN Red List of Threatened Species 1998 e T38627A10140239 doi 10 2305 IUCN UK 1998 RLTS T38627A10140239 en Retrieved 29 May 2023 Pelagodoxa henryana Becc Plants of the World Online Retrieved 27 May 2023 a b c Hodel Donald R 2019 Reassessment of Pelagodoxa PDF Palms 63 3 113 146 Retrieved 29 May 2023 nbsp This palm related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Pelagodoxa henryana amp oldid 1201881146, wikipedia, wiki, book, books, library,

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