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Abstract Detail


Systematics/Phytogeography / Taxonomie/ Section

Clark, John L. [1], Neill, David A. [2].

A new genus of Gesneriaceae from the Cordillera del Cóndor region in Southeastern Ecuador.

A new genus of Gesneriaceae, a small understory tree, was discovered during recent botanical expeditions to the Cordillera del Cóndor region in southeastern Ecuador. Molecular sequence data generated from chloroplast (trnLF) and nuclear (ITS) markers suggest that this undescribed taxon belongs in the family Gesneriaceae. Phylogenetic analyses support a close relationship with Reldia (tribe Beslerieae), a genus of five species that are primarily terrestrial herbs distributed from Panama to northern Peru. Putative morphological synapomorphies present in Reldia and the undescribed taxon are: alternately arranged leaves; small white flowers with a basal gibbosity to shallow spur; and a bivavled capsule. Alternately arranged leaves and a tree habit are more typical of Caribbean members in the tribe Gesnerieae in contrast to terrestrial herbs or subshrubs found in Beslerieae. This species is known from the Ecuadorian provinces of Pastaza, Morona-Santiago and Zamora-Chinchipe in lowland Amazonian tropical wet forest and in lower montane cloud forest on the western slopes of the Cordillera del Cóndor.


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1 - University of Alabama, Department of Biological Sciences, Box 870345, Tuscaloosa, AL, 35487, USA
2 - Herbario Nacional Ecuador, Missouri Botanical Garden, Casilla Postal 17-21-1787, Avenida Ro Coca E6-115, Quito, Ecuador

Keywords:
Gesneriaceae
Reldia
Cordillera del Condor.

Presentation Type: Oral Paper:Papers for Sections
Session: 55
Location: 177/Law
Date: Wednesday, July 30th, 2008
Time: 12:00 PM
Number: 55016
Abstract ID:608


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