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A TEXTBOOK OF BOTANY 



[Cn.X 



FIG. 325. The life cycle of the Wheat Rust (Puccinia graminis). 



Left, above, wheat leaf with rust, i.e. masses of uredospores ; X { 

 Next, a group of uredospores ; X 200. Next, mycelium from uredospore 

 entering a wheat leaf through a stoma ; X 200. Middle, left, wheat stem 



