
Fic. 370. “Portion of hymenium of a mushroom, showing basidia of different 
ages. (x 860) 







Fig. 371. The Ustilaginales, or smuts 
Left, tip of sugar-cane plant infected by smut (Ustilago sacchari) (X 385); the 
black whiplike tip is little more than a mass of spores. Right, ear of corn show- 
ing swellings produced by smut (Ustilago zeae) (x to 
