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Abstract Detail


Pteridological Section/AFS

Link-Perez, Melanie A. [1], Watson, Linda E. [2], Hickey, R. James [1].

Putting down routes: Biogeographic patterns in Adiantopsis Fée (Pteridaceae).

Adiantopsis Fée is a small genus (ca. 30 species) of neotropical ferns in the large cheilanthoid clade of the Pteridaceae. Several members of the genus exhibit adaptations to xeric habitats, a feature that characterizes the cheilanthoids in general. However, our morphological and molecular phylogenetic study of Adiantopsis suggests that secondary radiation into mesic habitats accounts for a significant portion of species diversification, especially within the palmate clade. We will be presenting results of biogeographic analyses, including a discussion of distributional patterns of the genus and multiple colonization events into the Caribbean. Data support alternative hypotheses for diversification within the palmate clade (ca. 10 species) and we will explore the implication of each in light of the biogeography.


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1 - Miami University, Department of Botany, Oxford, Ohio, 45056, USA
2 - Oklahoma State University, Department of Botany, 104 Life Sciences East, Stillwater, Oklahoma, 74078, USA

Keywords:
Adiantopsis
cheilanthoids
ferns
Biogeography
Caribbean
adaptive radiation.

Presentation Type: Oral Paper:Papers for BSA Sections
Session: 1
Location: Alpine B/Snowbird Center
Date: Monday, July 27th, 2009
Time: 11:15 AM
Number: 1012
Abstract ID:807


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