Fig. 3.—Aa-Ae. Conidia of Ophiobolus heterostrophus from specimen of maize leaf collected at 
Bro JjjF svllle ’ Fla -» June > 1917, deposited in herbarium of the Office of Pathological Collections. 
Ba-Bf. Conidiophores of the smaller species of Helminthosporium 
maize tassels distributed as “Fungi Malayana No. 239,” and evidently the one which Saccardo 
identified as H. curvulum Sacc. X 500 
Ca-Cm. Conidia of the same species. X 500 
Da-Dp. Conidia of the larger tassel mold present in the specimens distributed as “Fungi 
malayana No. 239,” after treatment with chloral hydrate; not H. curvulum, nor H. turcicum, 
though perhaps Ophiobulus heterostrophus . X 500 
Ea-Ef. Conidiophores of the foregoing species. X 500 
F -. Po . r H° n of infe cted tassel from “Fungi malayana No. 239” bearing a mixture of two 
species of Helminthosporium. X 0.1 
( 710 ) 
