Thomasia is a genus of thirty-one species of flowering plants in the family Malvaceae. Plants in this genus are small shrubs that are endemic to the south-west of Western Australia, apart from T. petalocalyx that is native to Victoria and South Australia. The leaves are simple with leaf-like stipules at the base of the petiole, the flowers bisexual with five papery, petal-like sepals, usually five petals and five stamens opposite the petals. The fruit is a capsule covered with star-like hairs.[2][3][4]

Thomasia
Thomasia pygmaea
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Malvaceae
Subfamily: Byttnerioideae
Tribe: Lasiopetaleae
Genus: Thomasia
J.Gay[1]
Species

See text.

Synonyms[1]
Thomasia sarotes
Thomasia tenuivestita
Thomasia purpurea

Taxonomy

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The genus Thomasia was first formally described in 1821 by Jaques Étienne Gay in Mémoires du Muséum d'Histoire Naturelle.[5][6] The name Thomasia honours Pierre Thomas, his son Abraham, and Abraham's sons Philippe, Louis and Emmanuel, a family of Swiss plant collectors.[6][7]

Species list

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The following is a listed of Thomasia species recognised by the Australian Plant Census as at December 2020:[8]

References

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  1. ^ a b "Thomasia". Australian Plant Census. Retrieved 9 March 2022.
  2. ^ Short, Philip Sydney. "Thomasia". Royal Botanic Gardens Victoria. Retrieved 11 December 2020.
  3. ^ "Thomasia". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ^ "Thomasia". State Herbarium of South Australia. Retrieved 11 December 2020.
  5. ^ "Thomasia". APNI. Retrieved 11 December 2020.
  6. ^ a b Gay, Jaques E. (1821). "Monographie des Cinq Genres de Plantes, Lasiopétalées". Mémoires du Muséum d'Histoire Naturelle. 7: 450–452. Retrieved 11 December 2020.
  7. ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 118. ISBN 9780958034180.
  8. ^ "Thomasia". Australian Plant Census. Retrieved 11 December 2020.
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