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Brittonia

, Volume 56, Issue 1, pp 58–66 | Cite as

Phylogenetic relationships of Scaphyglottis and related genera (Laeliinae: Orchidaceae) based on nrDNA ITS sequence data

  • Robert L. Dressler
  • W. Mark Whitten
  • Norris H. Williams

Abstract

Sequences of the nuclear ribosomal internal transcribed spacer regions 1 & 2 (nrDNA ITS) including the intervening 5.8S region were analyzed cladistically for 43 individuals of 35 species ofScaphyglottis s.l. plus two outgroup taxa. Low levels of sequence divergence do not allow estimation of relationships among most clades, but the analyses indicate that four segregate genera (Hexisea Lindl.,Reichenbachanthus Barb. Rodr.,Hexadesmia Brogn., andPlatyglottis coriacea L.O. Williams) are embedded within a broad paraphyleticScaphyglottis. This broadly definedScaphyglottis sensu Dressler is characterized within Laeliinae by the usual presence of superposed growth habit and the presence of a column foot. In order to accommodate species formerly placed inPlatyglottis andReichenbachanthus, three new combinations are made inScaphyglottis:Scaphyglottis brasiliensis (Schltr.) Dressler,S. coriacea (L. O. Williams) Dressier, andS. emarginata (Garay) Dressler.

Key words

Orchidaceae Laeliinae Scaphyglottis Hexisea Reichenbachanthus Platyglottis ITS 

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Literature Cited

  1. Adams, B. R. 1988. New species and combinations in the genusScaphyglottis (Orchidaceae). Phytologia64: 249–258.Google Scholar
  2. —. 1993. A taxonomic revision of the genusScaphyglottis Poepp. & Endl. (OrchidaceaeEpidendroideae). Ph.D. dissertation, Southern Illinois University, Carbondale.Google Scholar
  3. Ames, O. 1937. Orchidaceae.In: P. C. Standley, editor. Flora of Costa Rica. Field Mus. Nat. Hist. Bot. Ser. 28: 197–306.Google Scholar
  4. Baker, R. K. 1972. Foliar anatomy in the Laeliinae (Orchidaceae). Ph.D. dissertation. Washington University, St. Louis.Google Scholar
  5. Baldwin, B. G., M. J. Sanderson, J. M. Porter, M. F. Wojceichowski, D. S. Campbell &M. J. Donoghue. 1995. The ITS region of nuclear ribosomal DNA: a valuable source of evidence on angiosperm phylogeny. Ann. Missouri Bot. Gard. 82: 247–277.CrossRefGoogle Scholar
  6. Brieger, F. G. 1992. Subtribus Epidendrinae:Pseudohexadesmia. Pages 487–488.In: F. G. Brieger, R. Maatsch & K. Senghas, editors. Schlecter’ Die Orchideen 1/A. 3rd ed. Verlag Paul Paray, Berlin.Google Scholar
  7. Brummitt, R. K. 1996. Report of the Committee for Spermatophyta: 44. Taxon 45: 671–681.CrossRefGoogle Scholar
  8. Dressier, R. L. 1960. Nomenclatural notes on the Orchidaceae I. Taxon 9: 213–214.CrossRefGoogle Scholar
  9. —. 1979. UnaHexisea distintiva de Panamá,Hexisea arctata Dressler. Orquídea (Méx.) 7: 215–225.Google Scholar
  10. —. 1994. Proposal to conserveScaphyglottis againstHexisea (Orchidaceae). Taxon 43: 665–666.CrossRefGoogle Scholar
  11. —. 2002. New species and combinations in Costa Rican orchids. Lankesteriana 3: 25–29.Google Scholar
  12. Felsenstein, J. 1985. Confidence limits on phylogenies: an approach using the bootstrap. Evolution 39: 783–791.CrossRefGoogle Scholar
  13. Garay, L. A. &H. R. Sweet. 1974. Orchidaceae.In: R. A. Howard, editor. Flora of the Lesser Antilles. Arnold Arboretum, Harvard University, Jamaica Plain, Massachusetts.Google Scholar
  14. Schlechter, R. 1926. Das System der Orchidaceen. Notizbl. Bot. Gart. Mus. Berlin Dahlem 9: 563–591.CrossRefGoogle Scholar
  15. Sun, Y., D. Z. Skinner, G. H. Liang &S. H. Hulbert. 1994. Phylogenetic analysis ofSorghum and related taxa using internal transcribed spacers of nuclear ribosomal DNA. Theoret. Appl. Genet. 89: 26–32.CrossRefGoogle Scholar
  16. Swofford, D. L. 2000. PAUP*: phylogenetic analysis using parsimony (*and other methods). Version 4.0b 10. Sinauer, Sunderland, Massachusetts, USA.Google Scholar
  17. van den Berg, C., W. E. Higgins, R. L. Dressler, W. M. Whitten, M. A. Soto Arenas, A. Culham &M. W. Chase. 2000. A phylogenetic analysis of Laeliinae (Orchidaceae) based on sequence data from internal transcribed spacers (ITS) of nuclear ribosomal DNA. Lindleyana 15: 96–114.Google Scholar
  18. Whitten, W. M., N. H. Williams &M. W. Chase. 2000. Subtribal and generic relationship of Maxillarieae (Orchidaceae) with emphasis on Stanhopeinae: combined molecular evidence. Amer. J. Bot.87: 1842–1856.CrossRefGoogle Scholar

Copyright information

© The New York Botanical Garden Press 2004

Authors and Affiliations

  • Robert L. Dressler
    • 1
    • 2
    • 3
  • W. Mark Whitten
    • 4
  • Norris H. Williams
    • 4
  1. 1.Florida Museum of Natural HistoryUSA
  2. 2.Missouri Botanical GardenUSA
  3. 3.Marie Selby Botanical GardenUSA
  4. 4.Florida Museum of Natural HistoryUniversity of FloridaGainesville

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