Peter F. Stevens
Peter Francis Stevens is a British botanist. He is a researcher at the Missouri Botanical Garden and a professor of biology of the University of Missouri–St. Louis. He is a member of the Angiosperm [Phylogeny Group] which created the APG, APG [II system|APG II], APG III, and APG IV systems.
He maintains a web site, APweb, hosted by the Missouri Botanical Garden, which has been regularly updated since 2001, and is a useful source for the latest research in angiosperm phylogeny which follows the APG approach.
The standard List of [botanists by author abbreviation|author abbreviation] P.F.Stevens is used to indicate P. F. Stevens as the author when Author [citation (botany)|citing] a botanical name. He has named dozens of species, mostly in the families Clusiaceae and Ericaceae, and he also described the genus Romnalda.