The University of Florida Macroalgal Collection contains approximately 4,000 specimens. The overwhelming majority are from the United States and adjacent international waters. The collection includes specimens accumulated at FLAS over many decades and the Florida Fish and Wildlife Conservation Commission collection (STPE, aka Marine Research Lab, St. Petersburg, Florida) acquired in 2010. Important collections includematerial collected for a study related to the potential ecological impact of the Crystal River power plant and the Hourglass Cruises, material collected as part of a survey of the continental shelf of the Gulf of Mexico by the Marine Research Lab of the Florida Board of Conservation. The FLAS acronym is the standard international abbreviation for the University of Florida Herbarium. It is derived from the herbarium's early association with the Florida Agricultural Experiment Station.