PLANTS OF IOWA 



j7 



669. U. pyriformis, Cke. 

 On Acorns calamus, L. 



670. U. rudbecklce, Arthur and Hoi way. 

 On Budbeckia laciniata, L. 



671. U. sparganii, C. & P. 



On Sparganium eurycarpum, Engelm. 



672. U. toxidendri, R. & R. 



On Rhus toxicodendron, L. 



673. U. trifolii, (Hedw.) Lev. 



Abundant in September on Trifolium pratense. 



674. U. appendicuJatus, (Pers.) Link. 



Abundant on Strophostyles angulosa. Bean rust. 



675. U. digitalus, Halstead. 



On leaves of Leersia virginica. 



676. U. cephidce, Farl. 

 Smut on onions. 



Puccinia, Pers. 



677. P. amorplice, Curtis. 



On Amorpha fruticosa, L. ; A. canescens, Nutt; A. mi- 

 crophylla, Pursh. 



678. P. andropogi, Schw. 



On Andropogon furcahis, Muhl. ; A. scoparins, Michx. 



679. P. anemones-virginiance, Schw. 



On Anemone cylindrica, Gr. ; A. virginiana, L. 



680. P. angustata, Pecfl. 



On Cyperus strigosus, L. 



681. P. asteris, Duby. 



On Aster novce-anglice, L. ; A. azureus, Lind. 



682. P. arundinarlce, Schw. 



On Spartina cynosuroides, Willd. 



683. P. calthae, Link. 



On Caltha palustris, L. 



684. P. caricis, (Schum) Wint. 



On Co/tx strieta, Lam,; C\ adusta, Boott., and 0. »<ro- 

 minae, Schk. 



685. P. circcece, Pers. 



On Circaea lutetiana, L. 



