64 
IOWA ACADEMY OF SCIENCE 
COMPARATIVE DISTRIBUTION OF COMMON FUNGUS DISEASES IN 
Name of Disease 
187X)- 
1877 
1878- 
1881 
ISS^llSSS 
188411885 
- 
- 
- 
- 
- 
- 
+ 
+ 
+ 
+ 
+ 
65 Rust ou ash 
+ 
+ 
+ 
fifi Rpd rnfft of TflsphpiM’y ... 
aj Ornngp rnsf of tosp . . .. _ . . 
finnsphprry rnsf 
-f 
Asp.nrngus rnsf . . _ _ 
-f . . 
U.stilagineae— 
70 Ofit jamnf 
71 Whf“Ot smnf (loose). .. . 
7'9, Povn smnf 
+ 
- 
7 ;^ Barley smnf 
74 Borlpy smnf (naked) 
75 Bnnf of wbeaf 
- 
76 Foxfnil smnf .. . . . ... 
77 Sorghum smnf ._. . _. .. . 
7 S Timofhy smnf .. . . 
79 Crab-grass smut 
80 Wild rye smut _ 
SI Afillef smnf .. _ . 
References: 
(a) Abundant early in the season. 
(&) Abundant early in season on cherry. 
(c) Abundant in the fall. 
(d) Abundant on seedlings. 
(c) Common on sugar beet. 
(/) Common on pepper-grass early in the spring. 
(g) Abundant on seedlings of cherry and American plum. 
(h) Abundant on wild apples. 
(i) Severe locally. 
