473 
On Seirpus validus Vahl. 
Jasper, 1913 (Arthur & Fromme). 
126. NIGREDO SILPHII (Burr.) Arthur. 
Aeicidium compositarum 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 Juneus tenuis Willd. 1896:222. 1898:187. 1905:180. 1908: 
90. 
Fayette, 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 Spermacoces (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 lL. 1893:58. 
Johnson, 1890 (Fisher). 
On Trifolium repens L. 1893:58. 
Montgomery, 1893 (Olive); Tippecanoe, 1888 (Bolley), 1895 
(Golden). 
*129. NIGREDO VALENS (Kern) Arth. 
Uromyces valens Kern. 
On Carex lupulina Muhl. 1893 :58. 
Johnson, 1890 (Fisher). 
