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By: Canada. Department of Agriculture. - Drayton, F. L. - Dominion Experimental Farms. Division of Botany.Edition:Publication info: Ottawa, F.A. Acland, Printer to the King's Most Excellent Majesty, 1926Volume: 71 (1926)Series:Holding Institution: Agriculture and Agri-Food Canada (AAFC)Subjects:BHL Collections: