Bui. 21 3, B'jreau of Plant Industry, U, S, Dept, of At?- cuitu' 



Plate XXII. 



(A) Daisy on salsify. Pure-culture inoculations of Feb. 27, 1908, at the points where 



the galls developed. Time: 2 months 9 days. 

 (B, C) Poplar on sugar beet. Pure-culture inoculations of J.une 4, 1910. Time: 31 days. 



