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Abstract Detail

Systematics Section/ASPT

Schilling, Edward [1], Panero, Jose [2], Scott, Randy [3], Crozier, Bonnie [4].

Systematic Analysis of Brickellia (Asteraceae, Eupatorieae).

King and Robinson in their landmark treatment of Eupatorieae created a sensation in the synantherology world by dismantling Eupatorium, in the process reviving or creating dozens of segregate genera. Many elements of their treatment of Eupatorium have been validated by subsequent studies, however. Other generic splits in their treatment have been less closely scrutinized. Here we present molecular phylogenetic data to show that Barroetea and Phanerostylis do not warrant recognition as genera distinct from Brickellia. Molecular phylogenetic results for Brickellia show that this large (almost 100 species) genus includes several component lineages that are as strongly supported by molecular data as Barroetea and Phanerostylis, but less obviously recognizable based on morphology. There are hints that features of flower and fruit morphology are significant in the evolution of Brickellia, but the difficulty in clearly interpreting these highlight the need for fundamental biological studies of its members.

Broader Impacts:

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1 - University of Tennessee, Department of Ecology & Evolutionary Biology, 569 Dabney Hall, KNOXVILLE, TN, 37996-1610, USA
2 - University of Texas, Section of Integrative Biology, 1 University Station C0930, Austin, TX, 78712, USA
3 - Northern Arizona University, Biological Sciences, BOX 5640, FLAGSTAFF, AZ, 86001-5640, USA
4 - University of Texas, Section of Integrative Biology, 311 BIOLABS BLDG, Austin, TX, 78712, USA


Presentation Type: Oral Paper:Papers for Sections
Session: 35
Location: Versailles Ballroom/Riverside Hilton
Date: Tuesday, July 30th, 2013
Time: 4:30 PM
Number: 35012
Abstract ID:798
Candidate for Awards:None

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