PLANTS OF IOWA 53 



608. V. longissima, (Sow.) Tul. 

 On Glyceria, Sp. 



609. U. nuda, (Jens.) 



On Hordeum vulgare. 



610. V. ovalidis, Ell. & Tracy. 

 On Oxalis stricta. 



611. U. panici-glauci, (Wallr.) Niessl. 

 On Setaria glauca. 



612. U. perennans, Kostr. 



On Arrhenatherum avenaceum. 



613. U. pushdata, Tracy and Earle. 

 On Panicum proliferum.. 



614. U. Rabenhorstiana, Kuhn. 



On Panicuyyi glabrum and Panicum sanguinale. 



615. U. tritici, (Pers.) Jensen. 

 On Triticum vulgare. 



616. Z7. arthurii, n. sp. 



On Paniadaria americana, (Torr.) MacM. 

 CintRxYCtta, Cornu. 



617. C. sorghi, (Sorok.) De Toni. 

 On Andropgon, sorghum. 



618. C. junci, (Schw.) Trel. 

 On J uncus tenuis. 



619. C. sphcerogena, (Burrill). 

 On Panicum, crus-galli. 



620. C. reiliana, (Kuehn.) Clinton. 

 On sorghum sp. probably vulgare. 



Schizonella, Schroet. 



621. S. melanogramma* (DC.) Schroet. 

 On Car ex pennsylvanica, Lam. 



Tolyposporium, Woron. 



622. T. bullatum. 



On Panicum crus-galli, L. 

 Doassansia, Cornu. 



623. D. alismatis, Cornu. 



On Alisma plantago, L., var. americanum, Gr. 



