The Full Wiki

Roystonea regia: Wikis

Advertisements
  
  
  

Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.

Did you know ...


More interesting facts on Roystonea regia

Include this on your site/blog:

Encyclopedia

From Wikipedia, the free encyclopedia

Roystonea regia
Roystonea regia at Collier-Seminole State Park, Florida
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
(unranked): Commelinids
Order: Arecales
Family: Arecaceae
Subfamily: Arecoideae
Tribe: Roystoneae
Genus: Roystonea
Species: R. regia
Binomial name
Roystonea regia
(Kunth) O.F.Cook
Synonyms

Oreodoxa regia Kunth
Oenocarpus regius (Kunth) Spreng.
Palma elata W.Bartram
Roystonea floridana O.F.Cook
Euterpe jenmanii C.H.Wright
Euterpe ventricosa C.H.Wright
Roystonea jenmanii (C.H.Wright) Burret
Roystonea elata (W.Bartram) F.Harper
Roystonea ventricosa (C.H.Wright) L.H.Bailey
Roystonea regia var. hondurensis P.H.Allen[1]

Roystonea regia, commonly known as the Cuban royal palm, Florida royal palm, or simply the royal palm is a species of palm which is native to South Florida, Mexico and part of Central America and the northern Caribbean. Although it ranged into central Florida in the eighteenth century, for some unknown reason in modern times it is only known from tropical parts of south Florida. A large and attractive palm, it has been planted throughout the tropics and subtropics as an ornamental tree. Although it is sometimes called R. elata, the name R. regia is preferred, as it is now a conserved name.

Although it is best known as an ornamental, R. regia is also used as a source of thatch and construction timber, and the fruit are eaten by birds, bats, and livestock. Roystonea regia is the national tree of Cuba.[2]

Contents

Description

Ventral view of mature R. regia. The distinctive crownshaft and canopy of pinnate leaves is clearly visible. Note the smooth trunk and rows of circular leaf scars

Roystonea regia is a large palm which reaches a height of 20–30 metres (66–98 ft) tall,[3] (with heights up to 34.5 m (113 ft) reported)[4] and a stem diameter of about 47 centimetres (19 in).[3] (K. F. Connor reports a maximum stem diameter of 61 cm (24 in).)[4] The trunk is stout, very smooth and grey-white in colour with a characteristic bulge below a distinctive green crownshaft.[5] Trees have about 15 leaves which can be up to 4 m (13 ft) long.[3]

The flowers are white with pinkish anthers.[5] The fruit are spheroid to ellipsoid in shape, 8.9–15 millimetres (0.35–0.59 in) long and 7–10.9 mm (0.28–0.43 in) wide.[3] They are green when immature, turning red and eventually purplish-black as they mature.[5]

Root nodules containing Rhizobium bacteria have been found on R. regia trees in India. The presence of rhizobia-containing root nodules is usually associated with nitrogen fixation in legumes; this was the first record of root nodules in a monocotyledonous tree.[6] Further evidence of nitrogen fixation was provided by the presence of nitrogenase (an enzyme used in nitrogen fixation) and leghaemoglobin, a compound which allows nitrogenase to function by reducing the oxygen concentration in the root nodule.[6] In addition to evidence of nitrogen fixation, the nodules were also found to be producing indole acetic acid, an important plant hormone.[7][8]

Taxonomy

Roystonea is placed in the subfamily Arecoideae and the tribe Roystoneae.[9] The placement Roystonea within the Arecoideae is uncertain; a phylogeny based on plastid DNA failed to resolve the position of the genus within the Arecoideae.[10] As of 2008, there appear to be no molecular phylogenetic studies of Roystonea[9] and the relationship between R. regia and the rest of the genus is uncertain.

The species was first described by American naturalist William Bartram in 1791 as Palma elata based on trees growing in central Florida.[5] In 1816 German botanist Carl Sigismund Kunth described the species Oreodoxa regia[1] based on collections made by Alexander von Humboldt and Aimé Bonpland in Cuba.[11] In 1825 German botanist Curt Polycarp Joachim Sprengel moved it to the genus Oenocarpus and renamed it O. regius.[1]

The genus Oreodoxa was proposed by German botanist Carl Ludwig Willdenow in 1807[12] and applied by him to two species, O. acuminata (now known as Prestoea acuminata) and O. praemorsa (now Wettinia praemorsa). Although these species were transferred to other genera, the genus Oreodoxa continued to be applied to a variety of superficially similar species which were not, in fact, closely related.[13] To address this problem, American botanist Orator F. Cook created the genus Roystonea,[14] which he named in honour of American general Roy Stone,[13] and renamed Kunth's species Roystonea regia.[14]

Two specimens of R. regia aged about ten years from Kolkata, India with fibrous roots typical of monocots.

Cook considered Floridian populations to be distinct from both the Cuba R. regia and the Puerto Rican R. borinquena, and he placed them in a new species, R. floridana,[13] which is now considered a synonym of R. regia.[1] In 1906 Charles Henry Wright described two new species based on collections from Georgetown, British Guiana (now Guyana) which he placed in the genus EuterpeE. jenmanii and E. ventricosa.[15] Both species are now considered synonyms of R. regia.[1] The name R. regia var. hondurensis was applied by Paul H. Allen to Central American populations of the species. However, Scott Zona determined that they did not differ enough from Cuban populations to be considered a separate variety.[3]

Based on the rules of botanical nomenclature, the oldest properly published name for a species has priority over newer names. Bartram applied the Linnaean binomial Palma elata to a "large, solitary palm with an ashen white trunk topped by a green leaf sheath [the crownshaft] and pinnate leaves"[16] growing in central Florida. While no type collection is known, there are no other native palms that would fit Bartram's description.[16] In 1946 Francis Harper pointed out that Bartram's name was valid and proposed a new combination, Roystonea elata. Liberty Hyde Bailey's use of the name in his 1949 revision of the genus, established its usage.[16]

Harper's new combination immediately supplanted Cook's R. floridana, but there was disagreement as to whether Cuban and Floridian populations represented a single species or two species. Zona's revision of the genus concluded that they both belonged to the same species. According to the rules of botanical nomenclature, the correct name of the species should have been Roystonea elata. Zona pointed out, however, that the name R. regia (or Oreodoxa regia) has a history of use in horticulture that dated from at least 1838, and that the species had been propagated around the world under that name. Roystonea elata, on the other hand, had only been used since 1949, and was used much less widely. On that basis, Zona proposed that the name Roystonea regia should be conserved.[16]

Advertisements

Common names

Common names of Roystonea regia
Common name Usage
Cuban royal palm In cultivation[3]
Florida royal palm United States[3]
royal palm United States; in cultivation[3]
palma criollo Cuba[3]
palma real Cuba[3]
palma real cubana (not reported)[4]
palma de seda Cuba[3]
yagua (not reported)[3]
palma de yagua cubana (not reported)[4]
palma de yaguas (not reported)[4]
palma macho (not reported)[3]
konnings palm (not reported)[4]
palmier royal (not reported)[5]
bottle palm Pakistan(?)[11]
waa Panama[3]
vakka India[17]

Reproduction and growth

A pair of Roystonea regia palms in Kolkata, India. Alongside on the ground is a freshly shed leaf with the sheath still green.

Roystonea regia produces unisexual flowers that are pollinated by animals.[3] European honey bees and bats are reported pollinators.[3][18] Seeds are dispersed by birds and bats that feed upon the fruit.[3]

Seed germination is adjacent ligular[3]—during germination, as the cotyledon expands it only pushes a portion of the embryo out of the seed. As a result, the seedling develops adjacent to the seed. The embryo forms a ligule, and the plumule protrudes from this.[19] Seedlings in cultivation are reported to begin producing a stem two years after germination, at the point where they produce their thirteenth leaf.[3] Growth rates of seedlings averaged 4.2 cm (1.7 in) per year in Florida.[20]

Distribution

Roystonea regia palms used an ornamentals to frame an entrance road in Cienfuegos, Cuba.

Roystonea regia is found in southern Florida, north-central and south-east Mexico, Belize, Honduras, Cuba, the Cayman Islands and The Bahamas.[1] It has been planted throughout the tropics and subtropics as an ornamental tree.[16]

William Bartram described the species from Lake Dexter, along the St. Johns River in the area of modern Lake and Volusia Counties in central Florida, an area well north of its modern range. The reason for its contraction in range is uncertain—it has been suggested that a severe freeze in 1835 and 1894–95 eliminated northern populations, or that land clearing by settlers eliminated most populations of the tree.[3][21]

Ecology

The leaves of Roystonea regia are used as roosting sites by Eumops floridanus, the Florida bonneted bat,[22] and is used as a retreat for Cuban tree frogs (Osteopilus septentriolalis), a non-native species, in Florida.[23] In Panama (where R. regia is introduced), its trunks are used as nesting sites by Yellow-crowned parrots (Amazona ochrocephala panamensis).[24] The flowers of R. regia are visited by pollen-collecting bees and are considered a good source of nectar. Its pollen was also found in the stomachs of Phyllonycteris poeyi, the Cuban Flower Bat (a pollen-feeder) and Monophyllus redmani, Leach's Single Leaf Bat (a nectar-feeder). Artibeus jamaicensis, the Jamaican fruit bat, and Myiozetetes similis, the Social Flycatcher, feed on the fruit.[3]

Roystonea regia is the host plant for the royal palm bug, Xylastodoris luteolus, in Florida.[25] It also serves as a larval host plant for the butterflies Pyrrhocalles antiqua orientis and Asbolis capucinus in Cuba,[26] and Brassolis astyra and B. sophorae in Brazil.[27] It is susceptible to bud rot caused by the oomycete Phytophthora palmivora[28] and by the fungus Thielaviopsis paradoxa.[29]

Roystonea regia is considered an invasive species in secondary forest in Panama.[30]

Uses

Roystonea regia has been planted throughout the tropics and subtropics as an ornamental.[16] The seed is used as a source of oil and for livestock feed. Leaves are used for thatching and the wood for construction.[4] The roots are used as a diuretic,[31] and for that reason they are added to tifey, a Haitian drink, by Cubans of Haitian origin.[32] They are also used as a treatment for diabetes.[31]

Fibres extracted from the leaf sheath of R. regia have been found to be comparable with sisal and banana fibres, but lower in density, making it a potentially useful source for the use in lightweight composite materials.[17] An extract from R. regia fruit known as D-004 reduces benign prostate hyperplasia (BPH) in rodents. D-004, is a mixture of fatty acids, is being studied as a potential alternative to finasteride for the treatment of BPH.[33]

Religious significance

Roystonea regia plays an important role in popular religion in Cuba. In Santería it is associated primarily with Shango or with his father Aggayú. It also has symbolic importance in the Palo faiths and the Abakuá fraternity. In Roman Catholicism, R. regia plays an important role in Palm Sunday observances.[34]

References

  1. ^ a b c d e f "Roystonea regia". Royal Botanic Gardens, Kew: World Checklist of Selected Plant Families. http://apps.kew.org/wcsp/namedetail.do?accepted_id=180149&repSynonym_id=143461&name_id=180149&status=true. Retrieved 2009-01-03.  
  2. ^ "Cuban Royal Palm (Roystonea regia), national tree of Cuba". Cuba Naturaleza. http://www.cubanaturaleza.org/index.php?option=com_content&view=article&id=30&Itemid=31. Retrieved 2009-04-21.  
  3. ^ a b c d e f g h i j k l m n o p q r s t u Zona, Scott (December 1996). "Roystonea (Arecaceae: Arecoideae)". Flora Neotropica 71.  
  4. ^ a b c d e f g Connor, K. F. (2002). "Roystonea regia (Kunth) O.F. Cook". in J. A. Vozzo. Tropical tree seed manual. Washington, DC: USDA Forest Service Agriculture Handbook 721. pp. 698–700. http://www.rngr.net/Publications/ttsm/Folder.2003-07-11.4726/PDF.2004-03-16.2047/file.  
  5. ^ a b c d e "Roystonea regia". Flora of North America. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=200027116. Retrieved 2009-01-04.  
  6. ^ a b Basu, P. S.; A. C. Ghosh; T. K. Dangar (1997). "Roystonea regia a monocotyledonous tree, bears rhizobial root nodules". Folia Microbiologica 42 (6): 601–06. doi:10.1007/BF02815473.  
  7. ^ Basu, P. S.; A. C. Ghosh (1998). "Indole Acetic Acid and Its Metabolism in Root Nodules of a Monocotyledonous Tree Roystonea regia". Current Microbiology 37 (2): 137–40. doi:10.1007/s002849900352.  
  8. ^ Basu, P. S.; A. C. Ghosh (2001). "Production of Indole Acetic Acid in Culture by a Rhizobium Species from the Root Nodules of a Monocotyledonous Tree, Roystonea regia". Acta Biotechnologia 21 (1): 65–72. doi:10.1002/1521-3846(200102)21:1<65::AID-ABIO65>3.0.CO;2-#.  
  9. ^ a b Roncal, Julissa; Scott Zona; Carl E. Lewis (2008). "Molecular Phylogenetic Studies of Caribbean Palms (Arecaceae) and Their Relationships to Biogeography and Conservation". The Botanical Review 74 (1): 78–102. doi:10.1007/s12229-008-9005-9.  
  10. ^ Asmussen, Conny B.; John Dransfield; Vinnie Deickmann; Anders S. Barfod; Jean-Christophe Pintaud; William J. Baker (2006). "A new subfamily classification of the palm family (Arecaceae): evidence from plastid DNA phylogeny". Botanical Journal of the Linnean Society 151 (1): 15–38. doi:10.1111/j.1095-8339.2006.00521.x.  
  11. ^ a b Malik, Kamal A.. "Roystonea regia". Flora of Pakistan. http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200027116. Retrieved 2009-01-04.  
  12. ^ "Oreodoxa". Royal Botanic Gardens, Kew: World Checklist of Selected Plant Families. http://apps.kew.org/wcsp/namedetail.do?accepted_id=165270&repSynonym_id=-9998&name_id=143450&status=false. Retrieved 2009-01-04.  
  13. ^ a b c Cook, O.F. (1901). "A Synopsis of the Palms of Puerto Rico". Bulletin of the Torrey Botanical Club 28 (10): 525–69. doi:10.2307/2478709. http://www.jstor.org/pss/2478709.  
  14. ^ a b Cook, O.F. (1900). "The Method of Types in Botanical Nomenclature". Science 12 (300): 475–81. doi:10.1126/science.12.300.475. PMID 17750859. http://www.jstor.org/pss/1628494.  
  15. ^ "Decades Kewenses: Plantarum Novarum in Herbario Horti Regii Conservatarum". Bulletin of Miscellaneous Information (Royal Gardens, Kew) 1906 (6): 200–05. 1906. doi:10.2307/4113208. http://www.jstor.org/pss/4113208.  
  16. ^ a b c d e f Zona, Scott (1994). "(1141) Proposal to Conserve Oreodoxa regia Kunth, the Basionym of Roystonea regia (Kunth) O. F. Cook, against Palma elata W. Bartram (Arecaceae)". Taxon 43 (4): 662–64. doi:10.2307/1223558. http://www.jstor.org/pss/1223558.  
  17. ^ a b Rao, K. Murali Mohan; K. Mohana Rao (2007). "Extraction and tensile properties of natural fibers: Vakka, date and bamboo". Composite Structures 77: 288-295. doi:10.1016/j.compstruct.2005.07.023.  
  18. ^ Fleming, Theodore H.; Cullen Geiselman, W. John Kress (2009). "The evolution of bat pollination: a phylogenetic perspective". Annals of Botany 104 (6): 1017–1043. doi:10.1093/aob/mcp197.  
  19. ^ Pinheiro, Claudio Urbano B. (2001). "Germination strategies in palms: the case of Schippia concolor in Belize". Brittonia 53 (4): 519–527.  
  20. ^ Jones, Julie Lynn. 1983. An Ecological Study of the Florida Royal Palm, Roystonea elata. M.S. Thesis. Florida Atlantic University.
  21. ^ Cook, O.F. (1936). "Royal Palms in Upper Florida". Science 84 (2168): 60–1. doi:10.1126/science.84.2168.60. PMID 17807356. http://www.jstor.org/pss/1663227.  
  22. ^ Timm, Robert M.; Hugh H. Genoways (2004). "The Florida bonneted bat, Eumops floridanus (Chiroptera:Molossidae): Distribution, Morphometrics, Systematics and Evolution". Journal of Mammalogy 85 (5): 852–65. doi:10.1644/BRB-205.  
  23. ^ Meshaka, Walter E., Jr. (1996). "Retreat Use by the Cuban Treefrog (Osteopilus septentrionalis): Implications for Successful Colonization in Florida". Journal of Herpetology 30 (3): 443–445.  
  24. ^ Rodríguez Castillo, Angélica M.; Jessica R. Eberhard (2006). "Reproductive Behavior of the Yellow-crowned Parrot (Amazona ochrocephala) in Western Panama". The Wilson Journal of Ornithology 118 (2): 225–36. doi:10.1676/05-003.1.  
  25. ^ Baranowski, R.M. (1958). "Notes on the biology of the royal palm bug, Xylastodoris luteolus Barber (Hemiptera, Thaumastocoridae)". Annals of the Entomological Society of America 51 (6): 547–551.  
  26. ^ Fernández-Hernández, Douglas Manuel (2007). "Butterflies of the Agricultural Experiment Station of Tropical Roots and Tubers, and Santa Ana, Camagüey Cuba:An Annotated List". Acta Zoológica Mexicana 23 (2): 43–75. http://www.ecologia.edu.mx/azm/AZM23-2(2007)/23(2)d-Fernandez.pdf.  
  27. ^ Penz, Carla M.; Annette Aiello and Robert B. Srygley (1999). "Early stages of Caligo illioneus and C. idomeneus (Nymphalidae, Brassolinae) from Panama, with remarks on larval food plants for the subfamily". Journal of the Lepidopterists' Society 53 (4): 142-152. http://research.yale.edu/peabody/jls/pdfs/1990s/1999/1999-53%284%29142-Penz.pdf.  
  28. ^ Garofalo, J. F.; R. T. McMillan, Jr. (1999). "Phytophthora bud-rot of palms in South Florida". Proceedings of the Florida State Horticultural Society 112: 110–112. http://www.fshs.org/Proceedings/Password%20Protected/1999%20Vol.%20112/110-112%20(GAROFALO).pdf.  
  29. ^ Garofalo, Joseph F.; Robert T. McMillian (2004). "Thielaviopsis diseases of palms". Proceedings of the Florida State Horticultural Society 117: 324–325. http://www.fshs.org/Proceedings/Password%20Protected/2004%20v.%20117/324-325.pdf.  
  30. ^ Svenning, Jens Christian (2002). "Non-native ornamental palms invade a secondary tropical forest in Panama". Palms 46 (2): 81–86. http://hdl.handle.net/10088/1704.  
  31. ^ a b Austin, Daniel F. (2004). Florida ethnobotany. Boca Raton, FL: CRC Press. ISBN 0849323320.  
  32. ^ Volpato, Gabriele; Daimy Godínez and Angela Beyra (2009). "Migration and Ethnobotanical Practices: The Case of Tifey Among Haitian Immigrants in Cuba". Human Ecology 37 (1): 43-53. doi:10.1007/s10745-008-9211-4.  
  33. ^ Carbajal, Daisy; Yazmin Ravelo, Vivian Molina, Rosa Mas and María de Lourdes Arruzazabala. "D-004, a lipid extract from royal palm fruit, exhibits antidepressant effects in the forced swim test and the tail suspension test in mice". Pharmacology, Biochemistry and Behavior 92 (3): 465–468. doi:10.1016/j.pbb.2009.01.008.  
  34. ^ Martínez Betancourt, Julio; Marco Antonio Vásquez Dávila (1992). "La palma real en las religiones populares en Cuba". Oralidad 4: 45–49. http://www.lacult.org/docc/oralidad_04_45-49-la-palma-real-en-las-religiones.pdf.  

Wikispecies

Up to date as of January 23, 2010

From Wikispecies

Roystonea regia

Taxonavigation

Classification System: APG II (down to family level)

Main Page
Cladus: Eukaryota
Regnum: Plantae
Cladus: Angiospermae
Cladus: Monocots
Cladus: Commelinids
Ordo: Arecales
Familia: Arecaceae
Subfamilia: Arecoideae
Tribus: Areceae
Subtribus: Roystoneinae
Genus: Roystonea
Species: Roystonea regia

Name

Roystonia regia (Kunth) O.F.Cook

Synonyms

  • Euterpe ventricosa C. H. Wright,
  • Oreodoxa regia Kunth,
  • Palma elata W. Bartram,
  • Roystonea elata (W. Bartram) F. Harper
  • Roystonea floridana O.F.Cook

References

  • Staples, George W. & Herbst, Derral R. 2005: A tropical garden flora: plants cultivated in the Hawaiian Islands and other tropical places. Bishop Museum Press, Honolulu. 908 pp.
  • Fosberg, F.R. 1997: Preliminary checklist of the flowering plants and ferns of the Society Islands. Ed. by David R. Stoddart. U. Cal. Berkeley.

Vernacular names

English: Florida or Cuban Royal Palm
Italiano: Palma reale

Advertisements






Got something to say? Make a comment.
Your name
Your email address
Message