Biology:Walteranthus

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Short description: Species of flowering plant

Walteranthus
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Brassicales
Family: Gyrostemonaceae
Genus: Walteranthus
Keighery
Species:
W. erectus
Binomial name
Walteranthus erectus
Keighery

Walteranthus is a monotypic genus of flowering plants belonging to the family Gyrostemonaceae.[1] It only contains one known species, Walteranthus erectus.[2]

It is native to the state of Western Australia.[2][3][4]

Description

They are monoecious,[3] (meaning hermaphroditic, with male and female reproductive structures in separate flowers but on the same plant), short-lived shrubs.[5] The leaves are linear to narrowly elliptic in shape and somewhat succulent. The male flowers are in axillary racemes with the axis not growing out.[5] They have 9-12 stamens,[3] in 1 whorl. The female flowers are solitary, axillary and they are among the upper males and above them. It has 2-5 carpels,[3] united. The stylodia (an elongate stigma that resembles a style) is erect. The fruit (or seed capsule) is a hard indehiscent, slightly rugulose (finely wrinkled) syncarp.[1] The seeds are faintly rugose (wrinkled).[5]

Taxonomy

The genus name of Walteranthus is in honour of Hans Paul Heinrich Walter (b. 1882), a German botanist who worked with Adolf Engler.[6] The Latin specific epithet of erectus means erect or upright.[7] Both the genus and the species were first described and published in Bot. Jahrb. Syst. Vol.106 on pages 108-110 in 1985.[2]

The genus is recognized by the United States Department of Agriculture and the Agricultural Research Service since 1994, but they do not list any known species.[8]

References

  1. 1.0 1.1 Hufford, Larry (November 1996). "Developmental Morphology of Female Flowers of Gyrostemon and Tersonia and Floral Evolution among Gyrostemonaceae". American Journal of Botany 83 (11): 1471-1487. 
  2. 2.0 2.1 2.2 "Walteranthus Keighery | Plants of the World Online | Kew Science" (in en). https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:893501-1. 
  3. 3.0 3.1 3.2 3.3 James W. Byng The Flowering Plants Handbook: A practical guide to families and genera of the world (2014), p. 317, at Google Books
  4. Stephen D. Hopper Western Australia's Endangered Flora and Other Plants Under Consideration for Declaration (1990), p. 121, at Google Books
  5. 5.0 5.1 5.2 Klaus Kubitzki and Clemens Bayer (Editors) The Families and Genera of Vascular Plants Vol.5, Flowering plants. Dicotyledons: Malvales, Capparales and Non-betalain Caryophyllales (2013), p. 216, at Google Books
  6. Burkhardt, Lotte (2018) (in German) (pdf). Verzeichnis eponymischer Pflanzennamen – Erweiterte Edition. Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2018. ISBN 978-3-946292-26-5. https://doi.org/10.3372/epolist2018. Retrieved 1 January 2021. 
  7. Harrison, Lorraine (2012). RHS Latin for Gardeners. United Kingdom: Mitchell Beazley. ISBN 184533731X. 
  8. "Genus Walteranthus Keighery". https://npgsweb.ars-grin.gov/gringlobal/taxon/taxonomygenus?id=12770. 

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