Xanthosia

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Xanthosia

From Wikipedia, the free encyclopedia

Xanthosia

Xanthosia rotundifolia near Torndirrup
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Apiales
Family:	Apiaceae
Subfamily:	Mackinlayoideae
Genus:	Xanthosia Rudge^[1]
Species
See text
Synonyms^[1]
Leucolaena R.Br. nom. inval., nom. nud. Leucolaena (DC.) Benth. Xanthosia sect. Euxanthosia DC. nom. inval. Xanthosia sect. Leucolaena DC.

Xanthosia is a genus of flowering plants in the family Apiaceae and is endemic to Australia. It comprises 20 species of shrubs endemic to Australia. Plants in the genus Xanthosia are perennial herbs or small shrubs, the leaves divided, toothed or lobed, (rarely simple), the flowers white, pinkish or pale green and usually arranged in a compound umbel.

Description

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Plants in the genus Xanthosia are perennial herbs or small shrubs that usually have divided, toothed, or lobed leaves. The flowers are usually arranged in a compound umbel, opposite leaves or on the ends of short, leafy branches, but sometimes reduced to a single flower. Each main branch of the umbel has an involucral bract and each of the secondary umbels ("umbellules") have 2 or 3 bracteoles at the base. The flowers are white, pinkish or pale green with conspicuous, usually egg-shaped, petal-like sepals, the petals narrow and curved inwards. The fruit is a flattened, oblong or round, non-fleshy schizocarp.^[2]^[3]^[4]^[5]

Taxonomy

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The genus Xanthosia was first formally described in 1811 by Edward Rudge in the Transactions of the Linnean Society of London, and the first species he described, (the type species) was Xanthosia pilosa.^[6]^[7] The name Xanthosia means "yellow", referring to the colour of the hairs on some species.^[8]

Species list

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The following is a list of species of Xanthosia accepted by the Australian Plant Census at May 2023:^[9]

Xanthosia atkinsoniana F.Muell. (W.A., N.S.W.)
Xanthosia candida (Benth.) Steud. (W.A.)
Xanthosia ciliata Hook. (W.A.)
Xanthosia collina Keighery (W.A.)
Xanthosia dissecta Hook.f. (N.S.W., Vic., Tas.) cut-leaved xanthosia
Xanthosia eichleri J.M.Hart & Henwood (W.A.)
Xanthosia fruticulosa Benth. (W.A.)
Xanthosia huegelii (Benth.) Steud. – heath xanthosia (W.A., S.A., Vic.)
Xanthosia kochii (E.Pritz.) J.M.Hart & Henwood (W.A.)
Xanthosia leiophylla F.Muell. ex Klatt (S.A., Vic.)
Xanthosia peduncularis Benth. (W.A.)
Xanthosia pilosa Rudge – woolly xanthosia (Qld., N.S.W., Vic., Tas.)
Xanthosia rotundifolia DC. – southern cross (W.A.)
Xanthosia scopulicola J.M.Hart & Henwood (N.S.W.)
Xanthosia singuliflora F.Muell. (W.A.)
Xanthosia sp. Dardanup (B.J. Keighery & N. Gibson 174) (W.A.)
Xanthosia stellata J.M.Hart & Henwood – star xanthosia (Qld., N.S.W., Vic.)
Xanthosia tasmanica Domin (W.A., S.A., N.S.W., Vic., Tas.)
Xanthosia ternifolia J.M.Hart & Henwood (N.S.W., Tas.)
Xanthosia tomentosa A.S.George (W.A.)
Xanthosia tridentata DC. rock xanthosia, hill xanthosia (N.S.W., Vic., Tas.)

References

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^ ^a ^b "Xanthosia". Australian Plant Census. Retrieved 2 May 2023.
^ Hart, J.M.; Henwood, Murray J. "Genus Xanthosia". Royal Botanic Garden Sydney. Retrieved 3 May 2023.
^ Duretto, Marco F.; Hart, J.M. "Xanthosia". Royal Botanic Gardens Victoria. Retrieved 3 May 2023.
^ "Xanthosia". State Herbarium of South Australia. Retrieved 3 May 2023.
^ "Xanthosia Rudge". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
^ "Xanthosia". APNI. Retrieved 3 May 2023.
^ Rudge, Edward (1811). "A description of several species of plants from New Holland". Transactions of the Linnean Society of London. 10 (2): 301–302. Retrieved 3 May 2023.
^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 124. ISBN 9780958034180.
^ "Xanthosia". Australian Plant Census. Retrieved 3 May 2023.

Taxon identifiers

Xanthosia

Wikidata: Q8043114
Wikispecies: Xanthosia
APNI: 115383
CoL: 649JD
eFloraSA: Xanthosia
FloraBase: 21881
GBIF: 3232356
GRIN: 12942
iNaturalist: 121651
IPNI: 40679-1
IRMNG: 1297182
NCBI: 90472
NZOR: 3360d925-914c-448b-b225-3d9afc1c3173
Open Tree of Life: 640749
Paleobiology Database: 22762
POWO: urn:lsid:ipni.org:names:40679-1
Tropicos: 40027059
VicFlora: b1e704a4-c69b-4b5c-a3a0-f4c29de5ddba
WFO: wfo-4000040896

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