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By: Stewart, William S.Type: ArticleIn: LASCA miscellaneaVolume: 6Series:Issue:Date: 1957Page Range: 9-10Publication Info: Arcadia, Los Angeles State and County Arboretum ; Prepared for distribution by California Arboretum Foundation, Inc, 1953-Subjects: Arboretums -- Research Horticulture -- Research Plants -- Research