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Tetraria

From Wikipedia, the free encyclopedia

Tetraria
Tetraria octandra
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Cyperaceae
Genus: Tetraria
P.Beauv. (1812 publ. 1816)[1][2]
Species[3]

40; see text

Synonyms[3]

Tetraria is a genus of flowering plants in the sedge family, Cyperaceae, native to Tanzania, South Africa, Borneo, Australia and New Zealand.[3]

The type species is Tetraria compar (L.) P.Beauv.[4]

Recent molecular work has shown that Tetraria is polyphyletic and in need of revision.[5][6]

Description

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Tetraria are perennial herbs, with generally few nodes.[7] The leaves are conspicuously sheathed with flat or incurved blades.[7] The inflorescence is usually a narrow panicle, with the flowers being bisexual, the lower flowers being male, and there are generally three stamens and three stigmas.[7] The fruit (a nutlet) is generally trigonous and often retains its style as a beak or crown.[7]

List of species

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40 species are currently accepted by Plants of the World Online:[3]

References

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  1. ^ "IPNI Tetraria". International Plant Name Index. Retrieved 1 August 2018.
  2. ^ Palisot de Beauvois, A.M.F.J. (1812) Memoires de la Classe des Sciences Mathematiques et Physiques de l'Institut de France 13(2) 54
  3. ^ a b c d Govaerts, R. et al. (2023) "Plants of the world online Tetraria". Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 11 November 2023.
  4. ^ Palisot de Beauvois, A.M.F.J. in Lestiboudois, T. (1819) Essai sur la famille des cypéracées p.36.
  5. ^ Elliott, T.L.; Muasya, A.M. (2017). "Taxonomic realignment in the southern African Tetraria (Cyperaceae, tribe Schoeneae; Schoenus clade)". South African Journal of Botany. 112: 354–360. doi:10.1016/j.sajb.2017.06.011. ISSN 0254-6299.
  6. ^ Viljoen, J.-A.; Muasya, A.M.; Barrett, R.L.; Bruhl, J.J.; Gibbs, A.K.; Slingsby, J.A.; Wilson, K.L.; Verboom, G.A. (2013). "Radiation and repeated transoceanic dispersal of Schoeneae (Cyperaceae) through the southern hemisphere". American Journal of Botany. 100 (12): 2494–2508. doi:10.3732/ajb.1300105. ISSN 0002-9122. PMID 24302693.
  7. ^ a b c d Hoenselaar, K. et al. (2010) Flora of Tropical East Africa. (Cyperaceae)
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