His postdoctoral training was under Bruce S. Weir in the Department of Statistics at North Carolina State University and under David L. Swofford at the Smithsonian Institution Laboratory of Molecular Systematics. Dr. Lewis has been an associate editor of Systematic Biology and is the elected president of the Society of Systematic Biologists for 2015. His research interests include maximum likelihood and Bayesian methods in phylogenetics and the systematic evolution of green plants from green algae to angiosperms. Reviews