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Emblingia

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Emblingia
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Brassicales
Family: Emblingiaceae
(Pax) Airy Shaw
Genus: Emblingia
F.Muell.
Species:
E. calceoliflora
Binomial name
Emblingia calceoliflora

Emblingia is a monospecific plant genus containing the species Emblingia calceoliflora, a herbaceous prostrate subshrub endemic to Western Australia. It has no close relatives, and is now generally placed alone in family Emblingiaceae.

Description

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It is a perennial, herbaceous prostrate subshrub, with simple petiolate leaves with "cartilaginous" (hard and tough, resembling cartilage) margins. The irregular, solitary flowers are white, cream, yellow, green or, pink, and occur from August to November. It has a non-fleshy fruit.[1][2][3][4]

Taxonomy

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The genus and species were first published in 1861 by Ferdinand von Mueller in Fragmenta Phytographiae Australiae, based on specimens collected in the Murchison region by Pemberton Walcott and Augustus Frederick Oldfield.[5][6]

Placement of the genus within a family has previously been considered a difficult problem; it has at various times been placed in Capparaceae, Sapindaceae, Goodeniaceae and, in the Cronquist system, Polygalaceae.[7] In 1965, Herbert Kenneth Airy Shaw erected Emblingiaceae for the genus, and that family is now used for the genus in the APG II, Dahlgren, Reveal, Stevens, Takhtajan and Thorne systems.[8] Molecular analyses have confirmed the genus's placement in the Brassicales.[7][9]

Distribution and habitat

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It is endemic to Western Australia, occurring in grey, yellow or red sand, on undulating sandplains of the west coast. It is most common in the Geraldton Sandplains and Carnarvon biogeographic regions, but also occurs on the north western edge of the Avon Wheatbelt.[4]

Ecology

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It is not considered to be threatened.[4]

References

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  1. ^ Watson, L.; M. J. Dallwitz (1992). "Emblingiaceae". The families of flowering plants: descriptions, illustrations, identification, and information retrieval. Archived from the original on 2007-03-11. Retrieved 2007-05-12.
  2. ^ "Emblingiaceae". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. ^ "Emblingia". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ^ a b c "Emblingia calceoliflora". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. ^ "Emblingia". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  6. ^ "Emblingia calceoliflora". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  7. ^ a b Chandler, Gregory T.; Randall J. Bayer (2000). "Phylogenetic placement of the enigmatic Western Australian genus Emblingia based on rbcL sequences". Plant Species Biology. 15: 57–72. doi:10.1046/j.1442-1984.2000.00024.x.
  8. ^ "USDA - APHIS - Concordance of Family Names: E". Archived from the original on 2007-02-11. Retrieved 2007-05-12.
  9. ^ Hall, Jocelyn C.; Hugh H. Iltis & Kenneth J. Sytsma (2004). "Molecular phylogenetics of core Brassicales, placement of orphan genera Emblingia, Forchhammeria, Tirania, and character evolution". Systematic Botany. 29 (3): 654–669. doi:10.1600/0363644041744491. S2CID 86218316.

Further reading

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