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Systematics Section / ASPT

Williams, N. H. [1].

Molecularsystematics of Telipogon (Orchidaceae: Oncidiinae).

Phylogenetic relationships of Telipogon Kunth, Ornithocephalus Hook. and related genera (Orchidaceae: Oncidiinae) were evaluated using parsimony analyses of data from the internal transcribed spacers of nuclear ribosomal (nrITS DNA) and three plastid regions (matK,trnL-F, and the atpΒ-rbcL intergenic spacer region). In addition to an analysis of 81 OTU's for ITS only, we used a matrix of 30 taxa for combined nuclear and plastid analyses. Stellilabium is embedded within Telipogon and should be merged with the latter genus. Telipogon consists of two South American clades and a Central American clade. One Stellilabium clade is sister to the Central American clade of Telipogon, and the second Stellilabium clade is sister to all of the Central American species of Telipogon and Stellilabium. Hofmeisterellais a member of the Telipogon alliance. The genus Dipterostele is not supported by this work. Nomenclatural changes are made transferring Stellilabium to Telipogon.


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1 - University of Florida, Florida Museum of Natural History, Po Box 117800, Gainesville, Florida, 32611-7800, USA

Keywords:
Telipogon
Stellilabium
Oncidiinae
Orchidaceae
Hofmeisterella.

Presentation Type: Poster
Session: 33-79
Location: Salon C, D & E - Gov Ballroom/Hilton
Date: Tuesday, August 16th, 2005
Time: 12:30 PM
Abstract ID:176


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