Bui. 60, Bureau of Plant Industry, U. S Dept. of Agriculture. 



Plate II. 



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Fig. 2.— Agar Plate Colonies. 



Fig. 3.— Agar Plate Colonies. 



Fig. 1.-THE Calla Rot Organism x 1,000. 



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Fig. 4.— Agar Plate Colonies. 



Fig. 5.— Agar Plate Colonies. 



