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Abstract Detail


Systematics Section

Clark, John L. [1], Neill, David A. [2], Teoh, View-Hune [1].

A new arborescent genus of Gesneriaceae from the Cordillera del Cóndor and Amazonian Ecuador.

A new genus of Gesneriaceae, a small understory tree, was discovered during recent botanical expeditions to the Cordillera del Cóndor region and Amazonian Ecuador. Molecular sequence data generated from chloroplast (trnL-F) and nuclear (ITS) markers strongly support that this undescribed taxon belongs in the family Gesneriaceae and in the tribe Beslerieae. Phylogenetic analyses support a close relationship with Anetanthus and Tylopsacas, two genera that are small understory herbs. Morphological features that are unique to the undescribed taxon include: an arborescent habit; both alternate and opposite leaf arrangement; lepidote trichomes on vegetative and reproductive structures; and small white flowers with a dorsal gibbosity at the base of the corolla tube. Morphological synapomorphies that the undescribed taxon shares with Anetanthus and Tylopsacas include: a bivalved capsule with septicidal dehiscence and the absence of prophyllys on the inflorescence.


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1 - University of Alabama, Department of Biological Sciences, Box 870345, Tuscaloosa, AL, 35487, USA
2 - Missouri Botanical Garden, P.O. Box 299, St. Louis, MO, 63166

Keywords:
Cordillera del Condor
Gesneriaceae.

Presentation Type: Oral Paper:Papers for BSA Sections
Session: 32
Location: Rendezvous A/Snowbird Center
Date: Tuesday, July 28th, 2009
Time: 11:30 AM
Number: 32014
Abstract ID:745


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