142 IOWA ACADEMY OP SCIENCES. 



We have followed Saccardo (Sylloge Fungorum) in the 

 arrangement of orders, genera and species, and in most cases 

 have used the synonomy given by him. 



USTILAGINEAE. 



Ustilago hypodytes (Schlecth.) Fr. 



Very abundant. On Stipa spartea. 

 U. tHtici (Pers.) Jensen. 



Not uncommon and was frequent in 1894 on Triticum vul- 

 gare. 

 U. hordei (Pers.) Kellerman and Swingle. 



Common on Hordeum vulgare. 

 r. nuda (Jensen) Kellerman and Swingle. 



Scarce on Hordeum vulgare. 

 U. avenae (Pers.) Jensen. 



Not uncommon on Avena sativa. 

 ('. segetum (Bull) Dittm. 



Common on Arrhenatherum avenaceum. 

 U. neglecta Niessl. 



Abundant on Setaria glauca. 

 U. Rabenhorstiana Kuhn. 



On Panicum sanguinale abundant. 

 U. maydls (D. C.) Corda. 



Abundant on Zea mays. 

 U. pustulata Tracy & Earle. 



Locally abundant in one place, first time observed on 

 Panicum proliferum. 

 TiHetiastriceformis (Westend.) Magnus. 



Not abundant on Phleum pratense. 

 T. foetens (B. & C.) Trelease. 



Not observed in 1895. 

 Schizonella melanogramma (D. C.) Schroet. 



Abundant in May, Moingona. 

 Sorosporium syntherismce (Schw.) Farlow. 



Abundant on Panicum capillare. 

 UrocystU Agropyri (Preuss) Schroet. 



Abundant in June and early July on Elymus Canadensis. 



UREEINE.E. 



myces Polygoni (Pers.) Fuckel. 



Abundant August and September on Polygonum aviculare 

 and P. erectum. 





