121 



On Cyperaceae: 



Rynchosj)ora glovierata (L.) VahL, Michigan City, Laporte County, 

 September 13, 1916, H. S. Jackson and E. B. Mains. 



5. Melanopsichium austro-americanum (Speg.) G. Beck, Ann. Nat. 



Hofmus. Wien 9:122. 1894. 



Ustilago austro-americana Speg. Anal. Soc. Ci. Argent. 12:63. 

 1881. 

 On Polygonaceae : 



Persicaria jjen^isylvanica (L.) Small, Plymouth, Marshall County, 

 September 5, 1916, H. S. Jackson. 



A species causing conspicuous hard black sori in the infloresence. 



6. SCHIZONELLA MELANOGRAMMA (DC.) Schrot. Beitr. Biol. Pfl. 2:352 



1877. 



Uredo melanogranwia DC. Fl. Fr. 6:75. 1815. 



On Cyperaceae: 



Carex pennsylvanica Lam., Shades, Montgomery County, May 16, 

 1913, F. D. Kern; Happy Hollow, Lafayette, Tippecanoe County, May 3, 

 1906, G. W. Wilson 5485; Battle Ground, Tippecanoe County, June 18, 

 1916, Evelyn Allison; Rochester, Fulton County, May, 1894, L. M. Un- 

 derwood, Ind. Biol. Sur. 10, May 17, 1894, J. C. Arthur; Pine Creek, 

 Warren County, May 5, 1917, G. N. Hoffer. 



Carex picta Steud., Bloomington, Monroe County, May 25, 1917, J. 

 M. VanHook 3746, June 9, 1917, C. C. Deam 23569; Brown County, 

 June 16, 1912, C. C. Deam. 



A very common species, occurring on the leaves, forming epiphyllous 

 linear black sori, which superficially resemble those of a rust. 



7. SOROSPORIUM confusum Jackson Bull. Torrey Club 35:148. 1908. 

 On Poaceae: 



Aristida sp., Elberfeld, Warrick County, October 4, 1916, H. S. 

 Jackson. 



An inconspicuous species the sori of which occur in the ovaries, 

 which remain enclosed in the glumes. This species was formerly con- 

 fused with S. Ellisii, which is now interpreted as occurring only on 

 Andropogon. 



