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By: Haskell, Royal J. (Royal Joyslin), - McMurtrey, J. E. - Fant, G. W. - United States. Division of Mycology and Disease Survey.Edition:Publication info: [Washington, D.C.], Division of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1931Volume: v.80Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: