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. 
UstUago liypodytes (Schlecth.) Fr. 
Very abundant. On Stipa spartea. 
U. tritici (Pers.) Jensen. 
Not uncommon and was frequent in 1894 on Triticum vul- 
gare. 
U. liordei (Pers.) Keilerman and Swingle. 
Common on Hordeum vulgare. 
U. nucla (Jensen) Keilerman and Swingle. 
Scarce on Hordeum vulgare. 
U. avenae (Pers.) Jensen. 
Not uncommon on Avena saliva. 
U. segetum (Bull) Dittm. 
Common on Arrhenatherum avenaceum. 
U. neglecta Niessl. 
Abundant on Setaria glauca. 
U. Rabenliorstiana Kuhn. 
On Panicum sanguinale abundant. 
U. maydis (D. C.) Corda. 
Abundant on Zea mays. 
JJ. pustulata Tracy & Earle. 
Locally abundant in one place, first time observed on 
Panicum proliferum. 
Tilletia-striceformis (Westend.) Magnus. 
Not abundant on Phleum pratense. 
T. foetens (B. & C.) Trelease. 
Not observed in 1895. 
Schizonella melanogramma (D. C. ) Schroet. 
Abundant in May, Moingoiia. 
SorospoTium syntJierismce (Schw.) Far low. 
Abundant on Panicum capillare. 
Urocystis Agropyri (Preuss) Schroet. 
Abundant in June and early July on Elymus Canadensis. 
UREEINE^. 
XJromyces Polygoni (Pers.) Fuckel. 
Abundant August and September on Polygonum aviculare 
and P. erectum. 
