by plant family. Ethnobotany Raven (along with Dennis E. Breedlove) was a collaborator on a team led by Brent Berlin that published a seminal work on the classification of plants by the Tzeltal Mayan-speaking people of Highland Chiapas. They concluded that plant, as well as animal, descriptions could be grouped into five different hierarchical "taxonomic ethnobiological categories"; these included 1.) "unique beginner," such as plants and animals, 2.) "life form", such as tree, vine, bird, grass, mammal, etc.; 3.) the largest category, consisting usually of ~500 taxa, is "generic", and consists of names such as oak, pine, catfish, perch, and robin. Further, some "generics" were not included with in the classification of "life forms", and were called "aberrant". These included names such as cactus, bamboo, pineapple, platypus, etc., and were often of economic value—Agave, bean, and corn as examples. Two other taxa were called "specific" and "varietal," and were generally less numerous. Examples of "specific" include blue spruce, white fir, and post oak, and examples of "varietal" included baby beans, button beans, etc. Berlin, Breedlove and Raven later extended their analysis of plants and animals to other indigenous peoples including the Hanunoo speaking people of the island of Mindoro, Philippines; the Karam of Papua New Guinea; the Cantonese speaking boat people of Castle Peak Bay, Hong Kong; the Navajo of the Southwestern United States; the Fore people of Papua New Guinea; the Guaraní people of South America; and the Nahuatl speaking people of Mexico, and concluded that their five to six taxonomic ethnobiological categories were generalizable. Awards and honors American Society of Plant Biologists Leadership in Science Public Service Award, 2012 William L. Brown Award for Excellence in Genetic Resource Conservation, 2010 Arthur Hoyt Scott Medal 2009, awarded by the Scott Arboretum of Swarthmore College ANZAAS Medal, 2004 International Cosmos Prize, 2003 Veitch Memorial Medal, 2003 U.S. National Medal of Science recipient, 2000 Golden Plate Award of the American Academy of Achievement, 2000 Induction into the St. Louis Walk of Fame, 1995 Tyler Prize for Environmental Achievement, 1994 Volvo Environment Prize winner, 1992 The Delmer S. Fahrney Medal in 1989 Member of the American Philosophical Society, 1988 International Prize for Biology winner, 1986 Catharine T. MacArthur Foundation Fellowship, 1985 Member of the United States National Academy of Sciences, 1977 Member of the American Academy of Arts and Sciences, 1977 Foreign Member of the Linnean Society of London (FMLS) Honorary Member