﻿Halsted : Mvcological Notes. 



335 



Puccinia carthami Corda. Notice is here made of this find, for 

 it appears to be the first time that this rust has been taken in the 

 United States. The host plant is so rarely grown that it is not 

 likely to be frequently met with. It is curious that in this foreign 

 garden a rust should have developed so extensively as to show it- 

 self upon nearly every leaf, and doubtless had nearly ruined the 

 crop. Possibly it came in from the native country in the seed of 

 the Carthamus, or it may be some of the herb-leaf, branch and 

 flower as a coloring material accompanied the immigrants. Sac- 

 cardo records it for Silesia and Bohemia. 



