David J. Mabberley is a botanist and writer. He is an emeritus fellow at Wadham College, University of Oxford; adjunct professor at Macquarie University, Sydney; and professor emeritus at the University of Leiden. He is the author of Mabberley's Plant-book: A Portable Dictionary of Plants, their Classification and Uses, now in its fourth edition, and coauthor of Joseph Banks' Florilegium: Botanical Treasures from Cook's First Voyage.