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ETD Abstract Container

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A Revision of Caribbean Adiantopsis

Barker, Michael Shane
http://rave.ohiolink.edu/etdc/view?acc_num=miami1071253706

Abstract Details

2003, Master of Science, Miami University, Botany.
Adiantopsis is a tropical cheilanthoid fern genus that unlike other cheilanthoid genera, is unstudied. The present work evaluated the taxonomy and relationships among Caribbean Adiantopsis . A total of 136 characters were examined on approximately 500 herbarium specimens. This study identified nine Caribbean Adiantopsis species, of which three are newly discovered. Additionally, an intriguing pattern of morphological and reticulate evolution was revealed by the analyses. Adiantopsis consists of three different lamina morphologies; palmate, pedate, and pinnate. The two pedate taxa are hypothesized to be fertile allotetraploid derivatives of the single palmate A. radiata and two different pinnate taxa. In this regard they parallel the origin of the South American A. × austropedata . Thus, it appears that the pedate lamina morphologies in Adiantopsis are convergent, having originated multiple times via hybridization. This study provides testable hypotheses of morphological and reticulate evolution in the genus and presents a novel view of Caribbean Adiantopsis .
R. Hickey (Advisor)
91 p.
Biology, Botany
Pteridophytes; Adiantopsis; Cheilanthoids; Taxonomy; Reticulate Evolution

Recommended Citations

Citations

  • Barker, M. S. (2003). A Revision of Caribbean Adiantopsis [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1071253706

    APA Style (7th edition)

  • Barker, Michael. A Revision of Caribbean Adiantopsis. 2003. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1071253706.

    MLA Style (8th edition)

  • Barker, Michael. "A Revision of Caribbean Adiantopsis." Master's thesis, Miami University, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=miami1071253706

    Chicago Manual of Style (17th edition)

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© 2003, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.