44 DISEASES OF FIELD & GARDEN" CROPS. [CH.VIII. 



host plants here for Puccinia tnixta, FL, as they do on 

 the Continent, and that we may be unfortunate enough to 

 speedily see our onions, leeks, and garlic in the condition 

 of the Shrewsbury chives. 



There is an jtEcidium, the earliest stage, according to 

 many observers, of a Puccinia, found abundantly on our 

 wild garlic, Allium ursinum, L., and named ^Jcidium 

 Allii, Grev.; which is said to give rise, not to a Puccinia 

 on Allium, as might have been expected, but to a Puccinia 

 on Phalaris or Bigraphis arundinacea, Trin., one of our 

 common river-side grasses. It seems strange that al- 

 though we have the JEcidium in the greatest abundance, 

 and the grass upon which its ultimate or Puccinia con- 

 dition should grow, yet Puccinia sessilis, Schum., for such 

 is the name of its other supposed form, has not yet been 

 recorded as British. 



The only method at present known for preventing 

 attacks of Puccinia is to burn all affected plants and all 

 field and kitchen -garden refuse on which the Puccinia 

 has grown. In decaying refuse the spores hibernate, and 

 they should be killed during the period of hibernation. 



