Fic. 
Fie. 
Fig. 
Fie. 
Fic. 
Fig. 
Fic. 
Fic. 
Fie. 
Fie. 
Fie. 
Fie. 
Fic. 
Fie. 
Fie. 
Fic. 
Fic. 
Fie, 
10. 
af 
12. 
13. 
14. 
15. 
16. 
arf 
18. 
EXPLANATION OF PLATE III. 
UstrinaGco Mayoptis, Lev. 
Page 26. 
. Part of the “ tassel” of Indian corn affected by the corn smut. 
. Part of a cob of corn affected by the corn smut. 
. Five of the spores x 400. 
HELMINTHOSPORIUM INCONSPICUUM, C. & EZ. 
Page 28. : 
. Part of a leaf of Indian corn with its terminal part discolored and spotted 
by the fungus. 
. A small fragment bearing six plants moderately magnified. 
. Three plants bearing spores x 400. 
Puccrnta Maynis, Potsch. 
Page 29. 
. Pustules of the fungus on the leaf of Indian corn, 
. Four pustules of the early state of the fungus. 
. Vertical sections through two pustules of the fungus, moderately magni- 
fied ; the one at the left the early state. 
Four of the early spores x 400. 
Three spores x 400, 
RAMULARIA FRAGARIA, Pk. 
Page 30. 
Part of a leaf spotted by the fungus. 
A tuft of the fungus bearing four spores x 400. 
Two separate stems of the fungus, one of them branched, x 400. 
Four spores x 400. 
MUcOR INAQUALIS, Pk. 
Page 31. 
A tuft of the fungus. 
A branched and an unbranched stem of the fungus with their spore-cases, 
moderately magnified ; the one at the left ruptured irregularly and 
discharging its spores, the one at the right collapsed and the other 
yet unchanged. 
Several spores x 400. 
