122 



8. SOROSPORIUM Syntherismae (Peck) Farl. ; Farl. & Seym. Host Index 



N. Am. Fungi 152. 1891. 



Ustilago Syntherismae Peck, Ann. Rep. N. Y. State Mus. 27:103. 

 1875. 



On Poaceae: 



Cenchrus carolinianus Walt., Michigan City, Laporte County, Sep- 

 tember 13, 1916, H. S. Jackson and E. B. Mains, Greencastle, Putnam 

 County, October, 1892, L. M. Underwood, Ind. Biol. Sur. 6; Dayton, 

 Tippecanoe County, November, 1917, H. S. Jackson. 



Panicum dichotomiflorum Michx., Muncie, Delaware County, Sep- 

 tember 29, 1915, H. S. Jackson; Hammond, Lake County, October 14, 



1914, F. J. Pipal. 



The sori of this species as a rule cause the abortion of the entire 

 infloresence. 



9. Sphacelotheca Sorghi (Link) Clinton, Jour. Myc. 8:140. 1902. 



Sporisorium Sorghi Link, in Willd. Sp. PI. 6^:86. 1825. 

 On Poaceae: 

 Sorghum vulgare Pers. Muncie, Delaware County, September 29, 



1915, H. S. Jackson; West Lafayette, Tippecanoe County, September 

 18, 1912, E. J. Petry, September 20, 1917, G. A. Osner, September, 1915, 

 H. S. Jackson. 



This, the kernel .smut of sorghum, is evidently quite common. The 

 head smut S. Reilana, which generally involves the whole inflorescence, 

 has not yet been collected in Indiana. 



10. Ustilago anomala J. Kunze, Wint. in Rab. Krypt. Fl. l':100. 1881. 

 On Polygon aceae : 



Tiniaria scandens (L.) Small, Fern, Putnam County, September, 

 1893, L. M. Underwood, Ind. Biol. Sur. 1; Crawfordsville, Montgomery 

 County, September 20, 1908, V. B. Stewart 8. 



11. Ustilago Avenae (Pers.) Jens. Charb. Cereales 4:1889. 



Uredo segetum Avenae Pers. Tent. Disp. Fung. 57. 1897. 



On Poaceae: 



Avena sativa L., Greencastle, Putnam County, June 1893, L. M. 

 Underwood; Lafayette, Tippecanoe County, 1893; J. C. Arthur (Und. 

 Ind. Biol. Surv. 2) ; West Lafayette, Tippecanoe County, June 10, 1908, 

 F. D. Kern, June 25, 1916, J. C. Summers; Holman, Dearborn County, 



