202 SEVENTEENTH REPORT. 



Battle Creek, E. Laiisiug, Grand Haveu. July-Oct. Spalding, 



Wheeler, Beal. 

 Uromyces Fabse (Pers.) De Bary. On Lathy rus veuosus, L. 



pahistris and L. ochroleucns. Lakeland, Battle Creek. Aug.- 



Oct. Spalding, Beal. LaRue. 

 Uromyces hedysari- — jranicnlata (Schw.) Far!. On Desinodinni 



spp. Ann Arbor, etc. Aug. 20-Sei)t. Spalding Pieters, Beal. etc. 

 Ur(»niyces Howei I*k. Aselepias Syriaca and A. incaniata. Cold- 

 water, Ann Arbor. Sept. 12-Oct. 1. Mains, Sjialding. Merrow. 

 Uromyces Hyperici (Spreng.) Cnrtis. On Hypericum prolificum 



and H. virginicum. Ann Arbor, New Baltimore. Aug. 23-Sept. 



18. Johnson. IMeters. 

 Uromyces Lespidezje-procumbentis (Schw.) Curtis. On T^scpedeza 



capitata and L. reticulata. Ann Arbor, Battle Creek. Oct. 4-10. 



Spalding, Pieters, Merrow. 

 Uromyces minutus Diet. On Carex muskingumensis. Ann Arbor. 



Oct. 17. :Mains. 

 Uromyces jjerigynius Halsted. (I. Aecidium — ■.) On Aster sp. 



On Carex tribuloides and C. gracillima. Ann Arbor, E. Lansing. 



Apr. 2 and Oct. 14. Mains, Hicks. 

 Uromyces pyriformis Cke. On Acorus Calamus. New Baltimore. 



Aug. 5. Pieters. 

 Uromyces Polygon! (Pers.) Fuck. On Polygonum aviculare and 



P. erectum. E. Lansing, Ann Arbor. May 30 and Oct. 30. Beal, 



Spalding. 

 Uromyces Silphii (Burr.) Arth. (I. Aecidium Silphii Syd.) On 



Juncus tenuis. Ann Arbor, E. Lansing. July 23-Oct. 17. Hicks, 



IMeters, Mains. 

 Uromyces Sparganii C & 1*. On Sparganum eurycar])um. Ann 



Arbor, New Baltimore. Aug. 2-13. Johnson, Pieters. 

 Uromyces Terebinthi (D. C.) Wint. On Rhus toxicodendron. Ann 



Arbor, E. Lansing, Sept. 11-Oct. 3. Spalding, Hicks. 

 Uromyces Trifolii (Hedw.) Lev. On Trifolium repens. T. pra- 



tense and T. incarnatum. Ann Arbor. 1.. Lansing. Spalding, 



Mains, Beal. 

 Hyalo]»sora Polyi)odii (D. C.) Mag. On Cystojtteris fragilis. Ann 



Arbor. May 12. ]\Ierrow. (As Uredo Polypodii.i 

 Chrysomyxa Cassandrte Tranz. On Chamaeda]>hne calyculata. 



Ann Arbor, Lansing. June-Oct. Pieters, Hicks, Mains. 

 Form-genera. {Aecidial stage.) 



Aecidium Allenii Clint. On Shephardia canadensis. Ann Arbor, 



Mackinac Island. May 17-June 30. Johnson, Hicks. 



