Bui. 21 3, Bureau of Plant Industry, U. S. Dept. of Agriculture. 



Plate XX. 



(,1) Stizolobium pruriens S. P. I. No. 21300. A nematode infection occurring in the hot- 

 house and supposed at first to be crown-gall ; young gall on crown, old decaying gall 

 on root at left. 



(2) Natural crown-gall infection of young rose, from a hothouse in New Jersey. 



