Dr. Peter Bernhardt is professor of biology at Saint Louis University and a research associate at the Missouri Botanical Garden and the Botanic Garden and Domain Trust in Sydney, Australia. He is the author of many books, including, most recently, Gods and Goddesses in the Garden: Greco-Roman Mythology and the Scientific Names of Plants.

Dr. David Inouye is a Professor in the Department of Biology at the University of Maryland, College Park. David is on the Steering Committee of the North American Pollinator Protection Campaign, on the Board of Directors of the National Phenology Network, and the Scientific Advisory Board of the Endangered Species Coalition.

Gary Krupnick is the head of the Plant Conservation Unit in the Department of Botany, National Museum of Natural History at the Smithsonian Institution in Washington, D.C. His research examines how data from herbarium specimens can be used in assessing the conservation status of plant species.

Dr. Retha Meier is associate professor in the College of Education and Public Service at Saint Louis University and a research associate with the Missouri Botanical Garden in St. Louis and the Kings Park and Botanic Garden in Perth, Western Australia. She is an authority on pollination ecology and plant breeding systems who specializes in rare and endangered plant species.

Emily Underwood is a scientific illustrator living and working in central California. Her work is inspired by the landscapes that surround her and everything that lives and grows on them. She creates art to convey her enthusiasm for the natural world. She recently completed the Scientific Illustration program at California State University, Monterey Bay. She earned a M.S. in Geology from Oregon State University and a B.S. in Earth Science from U.C. Santa Cruz.