Puccinia graviinis 

 from Hordeum 

 jubatuni, Moor- 

 head, Minn., 

 September ii, 

 1915- 



Diagram 2. — Results of inoculations with Puccinia graminis triiici anc 



R7;: 5 



-w- 



15' 



^32- 28~ 



R--R- 



5 



w- 



R--R" 



44. 42_ 

 48' 4S 



78776° — 18. (To face page 230.) 



w- 



W" 



R-; ; I— R— R- 



16 

 „ 2 „o 



w- 



w- 



w- 



4 



B- — 



At— — 



A. sib 



27 



27 



R^^ 



i3 



A sib- 



