Tetraria

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

Tetraria
Tetraria octandra
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Cyperaceae
Genus: Tetraria
P.Beauv.[1][2]
Synonyms[3]

Aulacorhynchus' Nees
Boeckeleria T.Durand
Decalepis Boeckeler
Elynanthus Nees
Ideleria Kunth
Lepisia C.Presl
Macrochaetium Steud.
Schoenopsis P.Beauv. ex T.Lestib.
Sclerochaetium Nees
Tetrariopsis C.B.Clarke
Trichoballia C.Presl

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

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

(Accepted by Plants of the world online[3])

References
  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. Govaerts, R. et. al. (2018) "Plants of the world online Tetraria". Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 1 August 2018.
  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.
  7. Hoenselaar, K. et. al. (2010) Flora of Tropical East Africa. (Cyperaceae)
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