1. Department of Biological Sciences Mississippi State University Mississippi State Mississippi U.S.A.
2. Department of Systematic and Evolutionary Botany University of Zürich Zürich Switzerland
3. Florida Museum of Natural History University of Florida Gainesville Florida U.S.A.
4. Department of Biology University of Florida Gainesville Florida U.S.A.
5. Genetics Institute University of Florida Gainesville Florida U.S.A.
6. Biodiversity Institute University of Florida Gainesville Florida U.S.A.
7. Tsukuba Botanical Garden National Museum of Nature and Science Tsukuba Japan