Richard P. Wunderlin is professor emeritus of biology at the University of South Florida.Bruce F. Hansen is curator emeritus of biology at the University of South Florida Herbarium. Together, Wunderlin and Hansen have coauthored Flora of Florida, Volumes I–IV, and Guide to the Vascular Plants of Florida, 3rd edition.Alan R. Franck is director and curator of the University of South Florida Herbarium. With Richard P. Wunderlin and Bruce F. Hansen, he is coauthor of Flora of Florida, Volume IV, and the Atlas of Florida Plants website.