PLATE XXXV 
Fig. i.-—Smutted culms of Amber sorgo, showing the characteristic sterility of the 
main panicle. Photographed by Mr. E. C. Johnson. 
Fig. 2.—Proliferated head of Blackhull kaoliang, with one normal and one smutted 
head. Photographed by author. 
Fig. 3.—Smutted and nonsmutted plants of Red Amber sorgo used in head-smut 
infection experiment. Control pot (see Table V, plat B, No. 8) on left; inoculated 
pot (Table V, plat B, No. 3) on right, showing three smutted plants. Photographed by 
Mr. E. C. Johnson. 
