Explanation of Plate VI. 



54£\ PUCCINIA FRAXINATA {Lk.) Arth. 



On Spartina cynosuroides (L.) Willd., from Iowa. 



Six uredospores, two shown with pedicels, and one teleutospore. 



$\h. PUCCINIA FRAXINATA {Lk.) Arth. 



On Spartina cynosuroides (I/.) Willd., from Kansas. 

 Two uredospores and three teleutospores. 



54?'. PUCCINIA FRAXINATA {Lk.) Arth. 



On Spartina cynosuroides (L. ) Willd., from Kansas. 

 Four teleutospores. 



54/. PUCCINIA FRAXINATA {Lk.) Arth. 



On Spartina cynosuroides (Iy.) Willd., from Iowa. 

 Five teleutospores. 



54^. PUCCINIA FRAXINATA {Lk.) Arth. 



On Spartina fraxinata (L.) Willd., from Iowa. 

 Five teleutospores. 



