PLATE 5 
A. —Deformed, virescent tassel of a plant of Cattete Brazilian Yellow Flint resulting 
from a severe attack of Sclerospora philippinensis. This plant showed the usual heavy 
production of conidia from its extensive leaf and sheath areas. In addition, from a 
large proportion of the surface of the abnormally developed bractlike outgrowths in 
this tassel conidiophore formation took place in abundance. 
B. —Plant of Guam White Flint which, as a result of infection by 5 . philip pinensis, 
developed an abnormal ear branch. This branch resulted from the elongation of the 
shank and the excessive growth of the husks of an ear which at first was apparently 
normal. Conidiophore production, after it had ceased on the main body of the plant, 
continued in abundance on the broad, leafy tips and the basal sheath portion of the 
husks of this branch, prolonging the period of spore production to a total of more than 
nine weeks. At the extreme left can be seen a healthy plant with a normal ear. The 
meter stick is marked off in 5-cm. divisions. 
