Donnell, Aliya A. .
Towards a Revision of Bakeridesia (Malvaceae): Preliminary Findings.
Bakeridesia (Malvaceae) is a Latin American genus of tall shrubs and is distinguished from other genera in tribe Malveae by the presence of a lacerate wing on the dorsal margin of the mericarp. As presently delimited, Bakeridesia consists of 28 species divided into two subgenera: one that is primarily Mexican and Central American (subg. Bakeridesia), and another that is exclusively Brazilian (subg. Dipteron). A comprehensive revision of all Bakeridesia species has never been completed, and very little information exists on the ecology of the group. Recent field work in southern Mexico has provided insights into the variation, habitat and distribution of the species of subg. Bakeridesia. Fourteen species were examined in the field, their habitats documented, and one species was determined to be new. In addition, pollinators were observed for the first time and a new ethnobotanical use was documented. Though subg. Bakeridesia holds together very well morphologically, the inclusion of subg. Dipteron within Bakeridesia is questionable, as some characters suggest that it may be more closely related to Abutilon. Ongoing phylogenetic studies using the ITS spacer region may help resolve this question.
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1 - Ohio University, Environmental and Plant Biology, Porter Hall 315, Athens, OH, 45701, USA
Presentation Type: Oral Paper:Papers for Sections
Location: 556B/Convention Center
Date: Wednesday, August 4th, 2010
Time: 3:30 PM