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Plant Systematics and Evolution

, Volume 283, Issue 3–4, pp 237–245 | Cite as

Billburttia, a new genus of Apiaceae (tribe Apieae) endemic to Madagascar

  • Anthony Richard Magee
  • Ben-Erik van Wyk
  • Patricia M. Tilney
  • Fatima Sales
  • Ian Hedge
  • Stephen R. Downie
Original Article

Abstract

The genus Billburttia is described to include two new species endemic to Madagascar, B. capensoides and B. vaginoides. Both species were tentatively placed within the problematic genus Peucedanum L. (as Peucedanum sp. A and Peucedanum sp. B) based on their dorsally compressed fruits lacking prominent dorsal ribs and with winged marginal ribs. Recently, however, the African members of Peucedanum have been shown to be only distantly related to the type of the genus and have therefore been segregated into six African endemic genera. While the Malagasy species appear superficially similar to members from one of these segregate genera, viz. Notobubon, they differ markedly in their fruit anatomical characters, notably a narrower commissure, six commissural vittae, vascular tissue in the tip of the ribs and sphaerocrystals distributed in and around the epidermis. The latter two characters apparently represent apomorphies for Billburttia. The non-peucedanoid affinity of the genus, as suggested by the fruit anatomical data, was confirmed using ITS and rps16 intron sequences. Both parsimony and Bayesian analyses of these data place Billburttia within the tribe Apieae of subfamily Apioideae and not closely related to either Peucedanum (Selineae) or the African peucedanoid genera (Lefebvrea clade of Tordylieae).

Keywords

Billburttia capensoides Billburttia vaginoides Fruit anatomy ITS New genus New species Peucedanum rps16 intron Sphaerocrystals 

Notes

Acknowledgments

The authors would like to thank the curators and staff of BM, E, K, MO and P, who kindly made their specimens available for study, Prof. A.E. van Wyk (University of Pretoria) for valuable advice, and the University of Johannesburg, the South African Biosystematics Initiative and the National Research Foundation of South Africa for funding.

References

  1. Burtt BL (1991) Umbelliferae of southern Africa: an introduction and annotated checklist. Edinburgh J Bot 48:133–282CrossRefGoogle Scholar
  2. Calviño CI, Tilney PM, Van Wyk B-E, Downie SR (2006) A molecular phylogenetic study of southern African Apiaceae. Am J Bot 93:1828–1847CrossRefGoogle Scholar
  3. Downie SR, Katz-Downie DS (1996) A molecular phylogeny of Apiaceae subfamily Apioideae: evidence from nuclear ribosomal DNA internal transcribed spacer sequences. Am J Bot 83:234–251CrossRefGoogle Scholar
  4. Downie SR, Katz-Downie DS (1999) Phylogenetic analysis of chloroplast rps16 intron sequences reveals relationships within the woody southern African Apiaceae subfamily Apioideae. Can J Bot 77:1120–1135CrossRefGoogle Scholar
  5. Downie SR, Ramanath S, Katz-Downie DS, Llanas E (1998) Molecular systematics of Apiaceae subfamily Apioideae: phylogenetic analyses of nuclear ribosomal DNA internal transcribed spacer and plastid rpoC1 intron sequences. Am J Bot 85:563–591CrossRefGoogle Scholar
  6. Downie SR, Watson MF, Spalik K, Katz-Downie DS (2000) Molecular systematics of Old World Apioideae (Apiaceae): relationships among some members of tribe Peucedaneae sensu lato, the placement of several island endemic species, and resolution within the apioid superclade. Can J Bot 78:506–528CrossRefGoogle Scholar
  7. Downie SR, Plunkett GM, Watson MF, Spalik K, Katz-Downie DS, Valiejo-Roman CM, Terentieva EI, Troitsky AV, Lee B-Y, Lahham J, El-Oqlah A (2001) Tribes and clades within Apiaceae subfamily Apioideae: the contribution of molecular data. Edinburgh J Bot 58:301–330CrossRefGoogle Scholar
  8. Drude O (1897–1898) Umbelliferae. In: Engler A, Prantl K (eds) Die natürlichen Pflanzenfamilien, vol 3(8). Engelmann, LeipzigGoogle Scholar
  9. Feder N, O’Brien TP (1968) Plant microtechnique: some principles and new methods. Am J Bot 55:123–142CrossRefGoogle Scholar
  10. Felsenstein J (1985) Confidence limits on phylogenies: an approach using bootstrap. Evolution 39:783–791CrossRefGoogle Scholar
  11. Fitch WM (1971) Towards defining the course of evolution: minimal change for a specific tree topology. Syst Zool 20:406–416CrossRefGoogle Scholar
  12. Huelsenbeck JP, Ronquist F (2001) MRBAYES: Bayesian inference of phylogeny. Bioinformatics 17:754–755CrossRefPubMedGoogle Scholar
  13. Humbert H (1956) Contributions à l’étude de la Flore de Madagascar et des Comores. Fasicicule 5. Notulae Syst (Paris) 15:118–128Google Scholar
  14. Liu M, Plunkett GM, Lowry PP II, Van Wyk B-E, Tilney PM (2006) The taxonomic value of fruit wing types in the order Apiales. Am J Bot 93:1357–1368CrossRefGoogle Scholar
  15. Liu M, Van Wyk B-E, Tilney PM (2007) Irregular vittae and druse crystals in Steganotaenia fruits support a taxonomic affinity with the subfamily Saniculoideae (Apiaceae). S Afr J Bot 73:252–255CrossRefGoogle Scholar
  16. Magee AR, Van Wyk B-E, Tilney PM (2008a) A taxonomic revision of the genus Cynorhiza (Apiaceae: Apioideae). S Afr J Bot 74:726–734CrossRefGoogle Scholar
  17. Magee AR, Van Wyk B-E, Tilney PM (2008b) A taxonomic revision of the genus Nanobubon (Apiaceae: Apioideae). S Afr J Bot 74:713–719CrossRefGoogle Scholar
  18. Magee AR, Van Wyk B-E, Tilney PM, Downie SR (2008c) Ezosciadium (Apiaceae): a taxonomic revision of yet another early diverging South African apioid genus. Pl Syst Evol 276:167–175CrossRefGoogle Scholar
  19. Magee AR, Van Wyk B-E, Tilney PM (2009a) A taxonomic revision of the woody South African genus Notobubon (Apiaceae: Apioideae). Syst Bot 34(1):220–242Google Scholar
  20. Magee AR, Van Wyk B-E, Tilney PM, Downie SR (2009b) Generic delimitations and relationships of the Cape genera Capnophyllum, Dasispermum and Sonderina, the North African genera Krubera and Stoibrax, and a new monotypic genus of the subfamily Apioideae (Apiaceae). Syst Bot 34(3):580–594CrossRefGoogle Scholar
  21. Posada D, Crandall KA (1998) MODELTEST: testing the model of DNA substitution. Bioinformatics 14:817–818CrossRefPubMedGoogle Scholar
  22. Rompel J (1895) Krystalle von Calciumoxalat in der Fruchtwand der Umbelliferen und ihre Verwerthung für die Systematik. Sitzungberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe, Abteilung 1(104):417–473Google Scholar
  23. Ronquist F, Huelsenbeck JP (2003) MRBAYES 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19:1572–1574CrossRefPubMedGoogle Scholar
  24. Sales F, Hedge IC (2009) Ombellifères. In: Flora de Madagascar et des Comores. Fam. 157. Muséum National d’Histoire Naturelle, ParisGoogle Scholar
  25. Sales F, Hedge IC, Coutinho AXP, Marques A (2004) Apiaceae subfamily Apioideae in Madagascar. S Afr J Bot 70:446–448Google Scholar
  26. Swofford DL (2002) PAUP*: phylogenetic analysis using parsimony (*and other methods), version 4.0b10. Sinauer Associates, SunderlandGoogle Scholar
  27. Tabanca N, Douglas AW, Bedir E, Dayan FE, Kirimer N, Başer KHC, Aytac Z, Khan IA, Scheffler BE (2005) Patterns of essential oil relationships in Pimpinella (Umbelliferae) based on phylogenetic relationships using nuclear and chloroplast sequences. Pl Genet Res 3:149–163CrossRefGoogle Scholar
  28. Van Wyk B-E, Tilney PM (2004) Diversity of Apiaceae in Africa. S Afr J Bot 70:433–445Google Scholar
  29. Van Wyk B-E, Tilney PM, Winter PJD (1999) Four new genera of woody Apiaceae of Madagascar. Taxon 48:737–745CrossRefGoogle Scholar
  30. Weber A, Noltie H (2008) Brian Laurence Burtt (1913–2008). Taxon 57:1366–1369Google Scholar
  31. Werle E, Schneider C, Renner M, Volker M, Fiehnet W (1994) Convenient single-step, one tube purification of PCR products for direct sequencing. Nucleic Acids Res 22:4354–4355CrossRefPubMedGoogle Scholar
  32. Winter PJD, Van Wyk B-E (1994) The taxonomic value of epidermal characters in the leaf of Heteromorpha and some related genera (Apiaceae). Bothalia 24:187–194Google Scholar
  33. Winter PJD, Van Wyk B-E (1996) A revision of the genus Heteromorpha (Apiaceae). Kew Bull 51:225–261CrossRefGoogle Scholar
  34. Winter PJD, Van Wyk B-E, Tilney PM (1993) The morphology and development of the fruit of Heteromorpha (Apiaceae). S Afr J Bot 59:336–341Google Scholar
  35. Winter PJD, Magee AR, Phephu N, Tilney PM, Downie SR, Van Wyk B-E (2008) A new generic classification for African peucedanoid species (Apiaceae). Taxon 57:347–364Google Scholar

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Anthony Richard Magee
    • 1
    • 2
  • Ben-Erik van Wyk
    • 1
  • Patricia M. Tilney
    • 1
  • Fatima Sales
    • 3
    • 4
  • Ian Hedge
    • 4
  • Stephen R. Downie
    • 5
  1. 1.Department of Botany and Plant BiotechnologyUniversity of JohannesburgJohannesburgSouth Africa
  2. 2.Compton HerbariumSouth African National Biodiversity InstituteClaremontSouth Africa
  3. 3.Departamento de Botânica, Faculdade de Ciências e TecnologiaUniversidade de CoimbraCoimbraPortugal
  4. 4.Royal Botanic GardenEdinburghScotland, UK
  5. 5.Department of Plant BiologyUniversity of Illinois at Urbana-ChampaignUrbanaUSA

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