473 



On Scirpus valid us Vahl. 

 Jasper, 1913 (Arthur & Promme). 



126. NIGREDO SILPHII (Burr.) Arthur. 



Aeicidium compbsitarum Silphii Burr. 

 ■ Uromyces Junci-tenuis Sydow. 

 I. On Silphium perfoliatum L. 

 Vigo, 1899 (Arthur). 

 III. On Juncus Dudleyi Wieg. 



Posey, 1910 (Johnson); Steuben, 1903 (Kellerman) . 

 On Juncus tenuis Willd. 1896:222. 1898:187. 1905:180. 1908: 

 90. 

 Payette, 1914 (Ludwig); Franklin, 1912 (Ludwig); Hamilton, 

 1905 (Wilson); Jefferson, 1914 (Demaree); Madison, 1898 

 (Snyder) ; Marion, 1905 (Wilson) ; Marshall, 1893 (Underwood, 

 Ind. Biol. Sur. 37); Newton, 1913 (Arthur); Orange, 1913 

 (Arthur); Owen, 1911 (Pipal); Pulaski, 1912 (Ludwig); Starke, 

 1905 (Arthur); Tippecanoe, 1896 (Snyder). 



•127. NIGREDO SPERMACOCES (Schw.) Arth. 



Uromyces Sper?nacoces (Schw.) M. A. Curtis. 

 On Diodia teres Walt. 

 Harrison, 1915 (Fogal). 



128. NIGREDO TRIFOLII (Hedw.f.) Arth. 

 Uromyces Trifolii (Hedw.f.) Lev. 

 Caeomurus Trifolii (Hedw.f.) Gray). 

 On Trifolium hybridum L. 1893:58. 1905:181. 



Hamilton, 1905 (Wilson); Wabash, 1886 (Miller). 

 On Trifolium medium L. 1893:58. 



Johnson, 1890 (Fisher). 

 On Trifolium repens L. 1893:58. 



Montgomery, 1893 (Olive); Tippecanoe, 1SSS (Bolley), 1893 

 (Golden). 



*129. NIGREDO VALENS (Kern) Arth. 

 Uromyces valens Kern. 

 On Carex lupulina Muhl. 1893 :58. 

 Johnson, 1890 (Fisher). 



