Professor

Biography

      My primary research interests are in plant evolutionary biology and plant ecology. In my evolutionary research, the plants that I concentrate on are in the family Asteraceae (the sunflower family). Much of my work in Asteraceae has involved constructing phylogenies using DNA sequence data, through which I have found considerable evidence for ancient interspecific hybridization (reticulate evolution). I have also contributed identification keys and descriptions of the genera that I work on to the Flora of California and the Flora of North America

      More recently, I have been conducting field-oriented research in plant community ecology. My most recent completed work was a study of the moss floras of granite outcrops in the Piedmont of Georgia and Alabama and the relationship between species number and outcrop size. I am currently studying the moss communities of limestone glades in Alabama, Florida, Georgia, and Tennessee.

      In addition to these research activities, I have conducted a plant inventory of McIntosh Reserve (a local county park) and supervised graduate student thesis research in plant ecology. I am also the curator of the herbarium, a role in which I am responsible for maintaining the biology department’s plant collection, collecting and adding specimens to the collection, and responding to requests for information about our specimens or loans of specimens.

      My upper-level teaching interests are in plant biology, ecology, and evolution, and I regularly teach Vascular Plants (Biol 3223), Plant Taxonomy (Biol 3221), Ecology (Biol 3135), and Evolution (Biol 3242). In addition, I currently teach one introductory course (Biol 1108) and have in the past taught other introductory courses (Biol 1110 and Biol 1107).

Most recent publications:

Morgan, D. R., L. Krstec, and R. Korn. 2016. Variation in moss floras of granite outcrops in the southern Piedmont, eastern U.S.A. The Bryologist 116: 16-28.

Morgan, D. R. and B. Holland. 2012. Systematics of Symphyotrichinae: Disagreements between two nuclear regions suggest a complex evolutionary history. Systematic Botany 37: 818-832.

Morgan, D. R.  2012. Arida, Dieteria, Machaeranthera, and Xanthisma. Pp 246, 300-302, 378, and 442-443 in The Jepson Manual: Vascular Plants of California, second edition. Eds. B. G. Baldwin, D. H. Goldman, D. J. Keil, R. Patterson, T. J. Rosatti, and D. H. Wilken. Berkeley: University of California Press.

Morgan, D. R., R.-L. Korn, and S. L. Mugleston. 2009. Insights into reticulate evolution in Machaerantherinae (Asteraceae: Astereae): 5S ribosomal RNA spacer variation, estimating support for incongruence, and constructing reticulate phylogenies. American Journal of Botany 96: 920-932.

 

Education / Degrees

  • B.S., Entomology, Mississippi State University, 1976
  • M.S., Biology, Mississippi State University, 1979
  • Ph.D., Plant Biology, University of Texas at Austin, 1990
  • Courses Taught
  • Course Sections and Syllabi

    Fall 2017 Sections

    • BIOL-3135 (Ecology) Section: 01
    • BIOL-3221 (Taxonomy Flowerng Plants/Ferns) Section: 01

    Summer 2017 Sections

    • BIOL-1108 (Principles of Biology II) Section: 01

    Spring 2017 Sections

    • BIOL-3223 (Vascular Plants) Section: 01W
    • BIOL-3242 (Evolution) Section: 01W
    • BIOL-4986 (Medical Internship) Section: 04

    Fall 2016 Sections

    • BIOL-3135 (Ecology) Section: 01
    • BIOL-3221 (Taxonomy Flowerng Plants/Ferns) Section: 01

    Summer 2016 Sections

    • BIOL-1108 (Principles of Biology II) Section: 01
    • BIOL-1108L (Principles of Biology II Lab) Section: 01
    • BIOL-1108L (Principles of Biology II Lab) Section: 02

    Spring 2016 Sections

    • BIOL-3223 (Vascular Plants) Section: 01W
    • BIOL-3242 (Evolution) Section: 01W
    • BIOL-4986 (Internship Dental) Section: 10

    Fall 2015 Sections

    • BIOL-3135 (Ecology) Section: 01
    • BIOL-3221 (Taxonomy Flowerng Plants/Ferns) Section: 01

    Summer 2015 Sections

    • BIOL-1108 (Principles of Biology II) Section: 01

    Spring 2015 Sections

    • BIOL-3223 (Vascular Plants) Section: 01W
    • BIOL-3242 (Evolution) Section: 01W

    Fall 2014 Sections

    • BIOL-3135 (Ecology) Section: 01
    • BIOL-3221 (Taxonomy Flowerng Plants/Ferns) Section: 01
    • BIOL-4986 (Internship) Section: 03
    • BIOL-4986 (Emergency Room Intern) Section: 05

    Summer 2014 Sections

    • BIOL-1108 (Principles of Biology II) Section: 01

    Spring 2014 Sections

    • BIOL-3223 (Vascular Plants) Section: 01W
    • BIOL-3242 (Evolution) Section: 01W

    Fall 2013 Sections

    • BIOL-3135 (Ecology) Section: 01
    • BIOL-3221 (Taxonomy Flowerng Plants/Ferns) Section: 01

    Summer 2013 Sections

    • BIOL-1108 (Principles of Biology II) Section: 01
    • BIOL-1108L (Principles of Biology II Lab) Section: 01
    • BIOL-1108L (Principles of Biology II Lab) Section: 02
    • BIOL-1108L (Principles of Biology II Lab) Section: 03

    Spring 2013 Sections

    • BIOL-3135 (Ecology) Section: 02
    • BIOL-3223 (Vascular Plants) Section: 01W
    • BIOL-3223 (Vascular Plants-Honors) Section: 1HW
  • Publication List

    Morgan, D. R., L. Krstec, and R. Korn. 2016. Variation in moss floras of granite outcrops in the southern Piedmont, eastern U.S.A. The Bryologist 116: 16-28.

    Morgan, D. R. and B. Holland. 2012. Systematics of Symphyotrichinae: Disagreements between two nuclear regions suggest a complex evolutionary history. Systematic Botany 37: 818-832.

    Morgan, D. R. 2012. Arida, Dieteria, Machaeranthera, and Xanthisma. Pp 246, 300-302, 378, and 442-443 in The Jepson Manual: Vascular Plants of California, second edition. Eds. B. G. Baldwin, D. H. Goldman, D. J. Keil, R. Patterson, T. J. Rosatti, and D. H

    Morgan, D. R., R.-L. Korn, and S. L. Mugleston. 2009. Insights into reticulate evolution in Machaerantherinae (Asteraceae: Astereae): 5S ribosomal RNA spacer variation, estimating support for incongruence, and constructing reticulate phylogenies. American

    Potter, D., T. Eriksson, R. C. Evans, S. Oh, J. E. Smedmark, D. R. Morgan, M. Kerr, K. R. Robertson, M. Arsenault, T. A. Dickinson and C. S. Campbell. 2007. Phylogeny and classification of Rosaceae. Plant Systematics and Evolution 266: 5-43.

    Campbell, C. S., R. C. Evans, D. R. Morgan, T. A. Dickinson and M. P. Arsenault. 2007. Phylogeny of subtribe Pyrinae (formerly the Maloideae, Rosaceae): Limited resolution of a complex evolutionary history. Plant Systematics and Evolution 266: 119-145.

    Morgan, D. R. 2006. Dieteria and Psilactis. Pp 395-401 and 462-464 in Flora of North America. Vol. 20. Magnoliophyta: Asteridae, part 6: Asteraceae, part 2. Eds. Flora of North America Editorial Committee. New York: Oxford University Press.

    Morgan, D. R. and R. L. Hartman. 2006. Machaeranthera. Pp 394-395 in Flora of North America. Vol. 20. Magnoliophyta: Asteridae, part 6: Asteraceae, part 2. Eds. Flora of North America Editorial Committee. New York: Oxford University Press.

    Morgan, D. R. and R. L. Hartman. 2003. A synopsis of Machaeranthera (Asteraceae), with recognition of segregate genera. Sida Contributions to Botany 20: 1387-1416.

    Morgan, D. R. 2003. nrDNA external transcribed spacer (ETS) sequence data, reticulate evolution, and the systematics of Machaeranthera (Asteraceae). Systematic Botany 28: 179-190.

    Soltis, D. E., M. E. Mort, P. S. Soltis, C. Hibsch-Jetter, E. A. Zimmer and D. R. Morgan. 1999. Phylogenetic relationships of the enigmatic angiosperm family Podostemaceae inferred from 18S rDNA and rbcL sequence data. Molecular Phylogenetics and Evoluti

    Morgan, D. R. 1997. Reticulate evolution in Machaeranthera (Asteraceae). Systematic Botany 22: 599-615.

    Morgan, D. R. 1997. Decay analysis of large sets of phylogenetic data. Taxon 46: 509-517.

    Lane, M. A., D. R. Morgan, Y. Suh, B. B. Simpson and R. K. Jansen. 1996. Relationships of North American genera of Astereae, based on chloroplast DNA restriction site data. Pp 49-77 in Proceedings of the International Compositae Conference, 1994, eds.

    Soltis, D. E., P. S. Soltis, D. R. Morgan, S. M. Swensen, B. C. Mullin, J. M. Dowd and P. G. Martin. 1995. Chloroplast gene sequence data suggest a single origin of the predisposition for symbiotic nitrogen fixation in angiosperms. Proceedings of the Nat