900 ^Slsconsin Academy of Sciences, Arts, and Letters. 



DOASSANS1A INTERMEDIA Setch. 

 On Sagittaria lalijolia 



DOASSANSIA DEFORMANS Setch. 

 On Sagittaria latijolia 



DOASSANSIA ALISMATIS (Nees) Cornu 

 On Alisma Plan tag o-aquaiica 



DOASSANSIA RANUNCULINA Davis 

 On Ranunculus delphinifolius 



TRACYA LEMNAE (Setch.) Syd. 

 On Spirodela polyrhiza 



UREDINALES 



PUCCINIACEAE 



The Roman numerals I, II, III are used to indicate the aecial, 

 uredinial and telial states respectively. 



UROMYCES SPARGANII Cke. & Pk. 

 On Sparganium eurycarpum III. 



UROMYCES HALSTEDII De Toni 

 On Leersia virgin 'ca II, III. 



UROMYCES MINIMUS Davis 



On Mulilenhergia sylvatica II. III. 



UROMYCES ACUMINATUS Arih. 



On Spartina michauxiana II, III. . . 

 Steironema lanceolatum I. 

 Phlox pilosa I. 

 Polemonium reptans I. 



UROMYCES AMPHIDYMUS Syd. 

 On Glyceria septentrionalis II, III. 



UROMYCES ELEOCHARTDIS Arth. 

 On Elcochar.s pahistris II, III. 



UROMYCES SCIRPI Burr. 



On Scirptis fluviatilis II, III. 

 Cicuta maculata I. 



oulbifera I. 

 Sium cicutaefolium I. 



