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By: Henrich, James EType: ArticleIn: Exploring the arboretum : magazine for the members of the Los Angeles County Arboretum and Botanic GardenVolume: 2013:winter/springSeries:Issue:Date: 2013Page Range: 10Publication Info: Arcadia, Los Angeles Arboretum Foundation, [200-?]Subjects: Irwin, Robert, 1928- Los Angeles County Museum of Art Palms -- California -- Arcadia