Aug. 27, 1917 Puccuiia graminis on Cereals and Grasses 



471 



Table XXX. — Results of inoculations with uredinios pores of Puccinia graminis secalis 



Original host. 



Immediate host. 



Plant inoculated. 



Trials. 



Re- 

 sult. 



Decree of in- 

 fection. 



A gropyron re pens 



Hystrix palula 



Agropyron re pens 



Agropyron cristatum . 

 HordeumjubaluTn. . . 

 Agropyron repens. . . . 



Secale cereale 



Agropyron repens 



Secale cereale 



Agropyron repens 



Secale cereale 



A gropyron smithii . . . 

 A gropyron repens 



Do 



Do 



Do 



Do 



Secale cereale 



Hystrix patula 



Agropyron repens . .. . 

 Agropyron smithii. . . 



Agropyron repens 



Hordeum jubatum . . . 

 Agropyron cristatum. 



Do 



A gropyron repens 



Do 



Do 



Hordeum vttlgare . . . 



Secale cereale 



Hordeum vulgar e . . . 



....do 



....do 



....do 



Secale cereale 



Hordeum vulgare. . . 



Secale cereale 



Hordeum vulgare . . . 



Secale cereale 



....do 



....do 



Hordeuyn Titilgare . . . 

 Agropyron repens. . . 

 Elymus canadensis . 

 Elym.us robustus. . . . 



Secale cereale 



Hordeum vulgare . . , 



do 



do 



do 



do 



Secale cereale 



Hordeum vulgare. . . 



do 



Elymus virginicus. . 

 Hordeum jubatum. . 



Agropyron caninum. . . . 



....do 



Agropyron cristatum. . . . 



....do 



do 



Agropyron desertorum . . 

 do 



Agropyron imbricattiin. . 



....do 



A gropyron intermedin m 

 do 



Agropyron repens 



do 



do 



do 



do 



do 



do 



do 



A gropyron sihericum ... 



Agropyron smithii 



do 



do 



Agropyron tenerum. . . . 



do 



do 



do 



do 



48 



Moderate. 



Do. 



Heavy. 



Moderate. 



Moderate to 

 heavy. 



Weak. 

 Do. 



