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Lauren Rogers Thesis.pdf (8.98 MB)

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A taxonomic and biogeographic analysis of the Trifolium gracilentum species complex

Rogers, Lauren Marie
http://orcid.org/0000-0003-0051-758X
http://rave.ohiolink.edu/etdc/view?acc_num=miami1565010559912396

Abstract Details

2019, Master of Science in Botany, Miami University, Botany.
The Trifolium gracilentum Torr. & A. Gray species complex (Fabaceae) is a group of closely related clovers native to western North America. The group ranges from Mexico to the United States and Canada. Based on the most recent treatment by Vincent and Isely in 2012, the species complex includes five species, one of which contains two varieties. The taxonomy of the species complex has historically been unstable, so an analysis of morphological data was conducted from herbarium specimens to revise the taxonomy of the species complex. Principal component analyses and cluster analyses support five taxa that are recognized here: T. bifidum, T. ciliolatum, T. gracilentum, T. oliganthum, and T. palmeri. Additionally, the equilibrium model of island biodiversity’s predictions on rates of speciation were tested on specimens from the California Channel Islands and Guadalupe Island. The results support the model’s prediction of low rates of speciation in island systems that are close to the mainland.
Michael Vincent (Advisor)
Richard Moore (Committee Member)
Henry Stevens (Committee Member)
154 p.
Biology; Botany; Plant Biology; Plant Sciences
taxonomy; Trifolium; clover; island biogeography; species complex; Channel Islands

Recommended Citations

Citations

  • Rogers, L. M. (2019). A taxonomic and biogeographic analysis of the Trifolium gracilentum species complex [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1565010559912396

    APA Style (7th edition)

  • Rogers, Lauren. A taxonomic and biogeographic analysis of the Trifolium gracilentum species complex. 2019. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1565010559912396.

    MLA Style (8th edition)

  • Rogers, Lauren. "A taxonomic and biogeographic analysis of the Trifolium gracilentum species complex." Master's thesis, Miami University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=miami1565010559912396

    Chicago Manual of Style (17th edition)

miami1565010559912396
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© 2019, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.