BASIDIA-BEARING I'UNGI (SMUTS) 



183 



Fig. 63. — Bunt or stinking smut of wheat (Tilletia Irilici). a. Whole head af- 

 fected with smut; h, smutted grains; c, normal grains; d, smutted grain broken to 

 show spores; e, normal grain divided in the middle; /, chlamydospores enlarged; g, 

 germination of a spore. {Draivings by Pool, Venus A., from Bull. 135, Set. Ser. 141, 

 Univ. of Tex., Nov. 15, 1909.) 



