Leafspot of Maize Caused by Ophiobolus heterostrophus 
A.—Maize leaf 42 hours after inoculation by spraying with conidial suspension of Ophiobolus hetero¬ 
strophus. Photographed by transmitted light, the light areas corresponding to watersoaked spots. 
X 3/2 
Ba-Bb.—Portions of maize leaf inoculated with conidial suspension kept in damp chamber 36 
hours, then in greenhouse 15 days. X 3/2 
Ca-Cd.—Portions of rice leaf sprayed with conidial suspension and kept in damp chamber 42 
hours, the incipient spots originally formed not subsequently increasing in size. X 3/2 
D.—Portion of sugar-cane leaf sprayed with conidial suspension and kept in damp chamber 42 
hours, the incipient spots originally formed not increasing in size. X 3/2 
