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Sebaea

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Description

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Annual or perennial herbs. Stems usually ± 4-ridged or winged. Leaves well-developed or scale-like. Flowers 4-5-merous, terminal, solitary or in cymes, usually yellow. Calyx 4-5-lobed, ± free or with a short tube; lobes keeled or winged. Corolla tube with 4-5(-6) lobes; lobes without glandular nectaries within. Ovary ovoid or almost spherical, 2-locular. Stigma capitate or clavate, ± 2-lobed. Capsule septicidally 2-valved. Seeds very many, minute.
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Mark Hyde, Bart Wursten and Petra Ballings
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Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Sebaea Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=1094
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Bart Wursten
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Petra Ballings
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Sebaea

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Sebaea is a genus of annual plants in the family Gentianaceae.[1] Species occur in Africa, Madagascar, India, China, Thailand, Australia and New Zealand.[1][2] The genus was paraphyletic and has been split in four genera: Exochaenium, Klackenbergia, Lagenias and Sebaea s.str..[1][3][4] Synapomorphies for Sebaea s.str. include the presence of extra stigma along the style[5] (called diplostigmaty[6][7]) and the shape of the testa cells of the seeds.[1]

The name honors Albertus Seba (1665–1736), a Dutch pharmacist, zoologist and collector.[8]

Species include (non exhaustiv list):

References

  1. ^ a b c d Kissling, Jonathan; Yuan, Yong-Ming; Küpfer, Philippe; Mansion, Guilhem (December 2009). "The polyphyletic genus Sebaea (Gentianaceae): A step forward in understanding the morphological and karyological evolution of the Exaceae". Molecular Phylogenetics and Evolution. 53 (3): 734–748. doi:10.1016/j.ympev.2009.07.025. PMID 19646540.
  2. ^ Pirie, Michael; Litsios, Glenn; Bellstedt, Dirk; Salamin, Nicolas; Kissling, Jonathan (June 2015). "Back to Gondwanaland: can ancient vicariance explain (some) Indian Ocean disjunct plant distributions?". Biology Letters. 11 (6): 20150086. doi:10.1098/rsbl.2015.0086. PMC 4528461. PMID 26063747.
  3. ^ Kissling, Jonathan (2012-01-01). "Taxonomy of Exochaenium and Lagenias: Two Resurrected Genera of Tribe Exaceae (Gentianaceae)". Systematic Botany. 37 (1): 238–253. doi:10.1600/036364412X616800. ISSN 0363-6445.
  4. ^ Kissling, Jonathan; Buerki, Sven; Mansion, Guilhem (2009-08-01). "Klackenbergia (Gentianaceae – Exaceae), a new endemic genus from Madagascar". Taxon. 58 (3): 907–912. doi:10.1002/tax.583018.
  5. ^ Kissling, Jonathan; Endress, Peter K.; Bernasconi, Giorgina (2009). "Ancestral and monophyletic presence of diplostigmaty in Sebaea (Gentianaceae) and its potential role as a morphological mixed mating strategy" (PDF). New Phytologist. 184 (2): 303–310. doi:10.1111/j.1469-8137.2009.03000.x. PMID 19796337.
  6. ^ Marloth, R. (1909). "A diplostigmatic plant, Sebaea exacoides (L.) Schinz (Belmontia cordata L.)". Transactions of the Royal Society of South Africa. 1: 311–314. doi:10.1080/00359190909520037.
  7. ^ Kissling, Jonathan; Barrett, Spencer C.H. (2013). "Diplostigmaty in plants: a novel mechanism that provides reproductive assurance". Biology Letters. 9 (5): 20130495. doi:10.1098/rsbl.2013.0495. PMC 3971688. PMID 23945209.
  8. ^ a b c "Sebaea". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. Retrieved 3 January 2011.
  9. ^ Oliver, I.M.; Beyers, J.B.P. (2001). "A new species of Sebaea from the Swartberg range Western Cape, South Africa". Bothalia. 31 (2): 207–209. doi:10.4102/abc.v31i2.526.
  10. ^ Hilliard O.M. and Burtt B.L. 1982. Notes on some plants of Southern Africa chiefly from Natal: IX. Notes from the Royal Botanic Garden, Edinburg 40, 247-298.
  11. ^ a b Hilliard O.M. and Burtt B.L. 1983. Notes on some plants of Southern Africa chiefly from Natal: X. Notes from the Royal Botanic Garden, Edinburg 41, 304-306.
  12. ^ Kissling, Jonathan; Zeltner, Louis (2019). "Sebaea solaris (Gentianaceae), a new species from the Western cape of South Africa". South African Journal of Botany. 123: 20–22. doi:10.1016/j.sajb.2019.02.002.
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Sebaea: Brief Summary

provided by wikipedia EN

Sebaea is a genus of annual plants in the family Gentianaceae. Species occur in Africa, Madagascar, India, China, Thailand, Australia and New Zealand. The genus was paraphyletic and has been split in four genera: Exochaenium, Klackenbergia, Lagenias and Sebaea s.str.. Synapomorphies for Sebaea s.str. include the presence of extra stigma along the style (called diplostigmaty) and the shape of the testa cells of the seeds.

The name honors Albertus Seba (1665–1736), a Dutch pharmacist, zoologist and collector.

Species include (non exhaustiv list):

Sebaea albens (L. f.) Roem. & Schult. Sebaea albidiflora F.Muell. - white sebaea Sebaea ambigua Cham. Sebaea amicorum I.M. Oliv. & Beyers Sebaea aurea (L. f.) Roem. & Schult. Sebaea bojeri Griseb. Sebaea brachyphylla Griseb. Sebaea capitata Cham. & Schlechtdl. var. capitata Cham. & Schlechtdl. var. sclerosepala (Schinz) Marais Sebaea chironioides Gilg Sebaea elongata E. Mey. Sebaea erosa Schinz Sebaea exacoides (L.) Schinz Sebaea exigua (Oliv.) Schinz Sebaea filiformis Schinz Sebaea fourcadei Marais Sebaea grisebachiana Schinz Sebaea hymenosepala Gilg Sebaea junodii Schinz Sebaea laxa N.E.Br. Sebaea leiostyla Gilg Sebaea longicaulis Schinz Sebaea macrophylla Gilg Sebaea marlothii Gilg Sebaea membranaceae Hill Sebaea microphylla (Edgew.) Knobl. Sebaea micrantha (Cham. & Schlechtdel.) Schinz var. micrantha (Cham. & Schlechtdel.) Schinz var. intermedia (Cham. & Schlechtdel.) Marais Sebaea minutiflora Schinz Sebaea minutissima Hilliard & B.L.Burtt Sebaea natalensis Schinz Sebaea ovata (Labill.) R. Br. - yellow sebaea, yellow centaury Sebaea pentendra E. Mey. var. burchellii (Gilg) Marais var. pentendra E. Mey. Sebaea pleurostigmatosa Hilliard & B.L. Burtt Sebaea procumbens A.W. Hill Sebaea radiata Hilliard & B.L.Burtt Sebaea ramosissima Gilg Sebaea rara W. Dod Sebaea rehmannii Schinz Sebaea repens Schinz Sebaea scabra Schinz Sebaea schlechteri Schinz Sebaea sedoides Gilg var. confertiflora (Schinz) Marais var. sedoides Gilg var. schoenlandii (Schinz) Marais Sebaea solaris Kissling Sebaea spathulata Steud. Sebaea stricta (E. Mey.) Gilg Sebaea sulphurea Cham. & Schlechtdl. Sebaea thomasii Schinz Sebaea zeyheri Schinz var. acutiloba (Schinz) Marais var. cleistantha (R.A. Dyer) Marais var. zeyheri Schinz
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