Xylosma/zˈlɒzmə/[3]is agenusofflowering plantsin the familySalicaceae.[2]It contains around 100speciesofevergreenshrubsandtrees[4]commonly known asbrushhollies,xylosmas,or, more ambiguously,"logwoods".The generic name is derived from theGreekwords ξύλον (xylon), meaning "wood, tree", and ὀσμή (osmé), meaning "smell",[5]referring to the fragrant wood of some of the species.[4]TheTakhtajan systemplaces it in the familyFlacourtiaceae,[6]which is considered defunct by theAngiosperm Phylogeny Group.[2]

Xylosma
Xylosma hawaiensis
Scientific classificationEdit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Salicaceae
Subfamily: Salicoideae
Tribe: Saliceae
Genus: Xylosma
G.Forst.,1786[1]
Type species
Xylosma orbiculata
(J.R.Forst.& G.Forst.) G.Forst.[1]
Species

About 100, seetext

Synonyms[2]

Description

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Theleavesarealternate,simple, entire or finely toothed, 2–10 cm (0.79–3.94 in) long. Theflowersare small, yellowish, produced onracemes1–3 cm (0.39–1.18 in) long, usuallydioecious,[7]and have a strong scent. Thefruitis a small purple-blackberry5–10 mm (0.20–0.39 in) in diameter that contains 2 to 8seeds.[4]

Species

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As of February 2023,Plants of the World Onlineaccepted the following species:[8]

Distribution

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The genus is predominantly native to thetropicsandsubtropics,[4]from theCaribbean,Central America,northernSouth America,thePacific Islands,southernAsiaand northernAustralasia.One species,X. congesta,is found in warm-temperateeastern Asia(China,KoreaandJapan). Molecular phylogenetic analysis suggest that the genusLasiochlamysfromNew Caledoniamay be nested inXylosma.[9]

Ecology

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Xylosmafoliage is used as food by thecaterpillarsof somelepidoptera,such as the rustic (Cupha erymanthis), which feeds onX. congesta(syn.X. racemosa), and the common leopard (Phalanta phalantha), which feeds onX. longifoliaandX. congesta.

Uses

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The main use for the genus is ashedgeandtopiaryplants among gardeners indesertandchaparralclimates.Xylosma congestais the species usually seen in garden hedges and in road landscaping, despite the fact it bearsthorns.Other species cultivated for these purposes includeX. bahamensis,X. flexuosa,andX. spiculifera(syn.X. heterophylla).[4]X. longifoliais sometimes grown inIndiafor its edible fruits.[10]In addition, amedicinalextract is made from its young leaves that acts asantispasmodic,narcotic,andsedative.[11]15 species of the genus have reported medicinal or veterinary use.[12]

References

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  1. ^ab"!XylosmaG. Forst ".TROPICOS.Missouri Botanical Garden.Retrieved2010-03-05.
  2. ^abc"Genus:XylosmaG. Forst ".Germplasm Resources Information Network.United States Department of Agriculture. 2018-07-31.Retrieved2023-08-31.
  3. ^Brenzel, K. N. (1995).Sunset Western Garden Book(6 ed.). Sunset Publishing Corporation. pp. 606–07.ISBN978-0-376-03851-7.
  4. ^abcdeEverett, T. H. (1982).The New York Botanical Garden Illustrated Encyclopedia of Horticulture.Vol. 10. Taylor & Francis. p. 3572.ISBN978-0-8240-7240-7.
  5. ^Quattrocchi, U. (2000).CRC World Dictionary of Plant Names: Common Names, Scientific Names, Eponyms, Synonyms, and Etymology.Vol. IV R-Z. Taylor & Francis US. p. 2857.ISBN978-0-8493-2678-3.
  6. ^Takhtajan, A. (2009).Flowering Plants(2 ed.). Springer. p. 226.ISBN978-1-4020-9608-2.
  7. ^"XylosmaG. Forster, Fl. Ins. Austr. 72. 1786 ".Flora of China.eFloras.org.Retrieved2010-02-03.
  8. ^"XylosmaG.Forst ".The International Plant Names Index.Retrieved2023-02-16.
  9. ^Alford, M.A (2005). Systematics Studies in Flacourtiaceae. PhD Thesis, Cornell University, 2005.
  10. ^P. Hanelt, ed. (2001).Mansfeld's Encyclopedia of Agricultural and Horticultural Crops (Except Ornamentals).Vol. 3. Springer. p. 1374.ISBN978-3-540-41017-1.
  11. ^Khare, C. P. (2007).Indian Medicinal Plants: An Illustrated Dictionary.Springer. p. 725.ISBN978-0-387-70637-5.
  12. ^Duarte-Casar, Rodrigo; Romero-Benavides, Juan Carlos (January 2022)."Xylosma G. Forst. Genus: Medicinal and Veterinary Use, Phytochemical Composition, and Biological Activity".Plants.11(9): 1252.doi:10.3390/plants11091252.ISSN2223-7747.PMC9103172.PMID35567253.
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