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Costularia

From Wikipedia, the free encyclopedia
Genus of grass-like plants

Costularia
Costularia sp.
Scientific classificationEdit this classification
Kingdom:Plantae
Clade:Tracheophytes
Clade:Angiosperms
Clade:Monocots
Clade:Commelinids
Order:Poales
Family:Cyperaceae
Genus:Costularia
C.B.Clarke
Synonyms[1]
  • CyclocampeBenth. & Hook.f. (1883), nom. illeg.
  • LophoschoenusStapf (1914)

Costularia is a plant genus in the familyCyperaceae.[2][3][4][5] It includes 15 species native to southeastern Africa, ranging from South Africa (KwaZulu-Natal andNorthern Provinces) through Eswatini, Mozambique, Zimbabwe, and Malawi, and to the islandsMadagascar,Réunion, and theSeychelles in the Western Indian Ocean.[1][6]

The genus was formerly circumscribed to include 25 species. A molecular phylogenetic study found that circumscription to include four distinct lineages:

  1. Costularia s.s. (11 species) from Africa,Madagascar, theMascarene Islands andSeychelles.
  2. ChamaedendronLarridon (five species) fromNew Caledonia.
  3. a group largely conforming to subgenusLophoschoenus (eight species) from New Caledonia andMalesia that are now considered to be part of a redelimited genusTetraria.
  4. the speciesXyroschoenus hornei, which is endemic to the Seychelles.

In 2019, the genus was revised to include 15 species, generally corresponding toCostularia s.s. and including a few previously undescribed species.[6]

List of species

[edit]

15 species are accepted:[1]

Formerly placed here

[edit]

Xyroschoenus hornei (asCostularia hornei(C.B.Clarke)Kük.)

References

[edit]
  1. ^abcCostularia C.B.Clarke.Plants of the World Online. Retrieved 11 November 2023.
  2. ^Kew World Checklist of Selected Plant Families
  3. ^Govaerts, R. & Simpson, D.A. (2007). World Checklist of Cyperaceae. Sedges: 1-765. The Board of Trustees of the Royal Botanic Gardens, Kew.
  4. ^Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae. Flora of Tropical East Africa: 1-466.
  5. ^Strugnell, A.M. (2006). A checklist of the Spermatophytes of Mt. Mulanje, Malawi. Scripta Botanica Belgica 34: 1-199.
  6. ^abLarridon I, Rabarivola L, Xanthos M, Muasya AM. 2019. Revision of the Afro-Madagascan genus Costularia (Schoeneae, Cyperaceae): infrageneric relationships and species delimitation.PeerJ 7:e6528https://doi.org/10.7717/peerj.6528
Costularia
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