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Abstract Detail

Systematics Section

Prince, Linda [1].

Franklinia alatamaha or Gordonia alatamaha: molecular, morphological, and anatomical evidence.

The Ben Franklin tree, Franklinia alatamaha, known from a single locality along the Altamaha River near Ft. Barrington, Georgia, is presumed to be extinct in the wild. Last seen in the 1803, it persists through cultivation. It was originally described as a species of Gordonia but most 20th century researchers maintain it as a monotypic genus closely related to Gordonia and Schima. Recent cladistic analyses of a diversity of morphological characters suggest it might better be included within Gordonia, as originally described. A number of nucleic acid sequence data sets from both the chloroplast and nuclear genomes were analyzed using parsimony and Bayesian methods to test this hypothesis. Anatomical and morphological characters were also analyzed. Results do not support the inclusion of Franklinia within Gordonia. These data do support the recognition of Gordonia as narrowly defined (G. lasianthus + G. brandegeei) to the exclusion of Laplacea and Polyspora.

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1 - Rancho Santa Ana Botanic Garden, 1500 N College Avenue, Claremont, CA, 91711-3157, USA

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psbA-trnH IGS
rpL16 intron
trnL-trnF IGS
trnK intron.

Presentation Type: Oral Paper:Papers for Sections
Session: 19
Location: Lindell B/Chase Park Plaza
Date: Monday, July 11th, 2011
Time: 3:00 PM
Number: 19007
Abstract ID:618

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