IOWA ACADEMY OF SCIENCE 
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101. Septokia Prenanthis Ellis & Eveiii. 
On Prenenthes aWa L. (Nabalus albus Hook.) 
Not abundant. 
102. Septoria Rubi Westend. 
On Rul)us occidentalis L. 
Of exceptional occurrence during the past season but probably abundant both 
on wild and cultivated berries. This is frequently a very destructive pest. 
103. Septoria Scroptiulariae Peck. 
On ScropJiularia marylandica L. 
Common and abundant throughout the summer. 
104 Septoria Scutellariae Thuem. 
On Scutellaria lateriflora L. 
Only seen once during the past season, apparently not an abundant species. 
105. Septoria Silenes Westd. 
On Silene stellata (L.) Ait.f. 
A single station noted, but here the infection was abundant, scarcely a full 
grown leaf remaining healthy. 
106. Septoria Smilicanae Ellis & Mart. , 
On Smilicana racemosa (L.) Desf. (Vagnera Morong.) 
Of rather common occurrence and usually abundant in infected clumps. 
107. Septoria Toxicodendri Curtis. 
On Rhus Toxicodendron L. (R. radicans L.) 
Probably common and abundant. 
108. Septoria Urticae Desm. 
On Laportea canadensis (L.) Gaud. (Urticastum divaricatum (D.) Kuntze.) 
Not common nor abundant. 
Family Leptostromataceae. 
109. Leptothyrium pomi (Mont. & Fr.) Sacc. 
On Pyrus Malus L. (Malus Malus Britton). 
The fly speck disease of apples. Not uncommon, but not destructive as it is 
confined to the cortical cells of the fruit which it disfigures more than it in- 
jures. 
110. Melasmia Galii Ellis & Everh. 
On G-alium horeale L. 
Not common. 
order melancoxiales 
Family Melanconiaceae. 
111. Cylixdrosporium Humuli Ellis & Everh. 
On Humulis Lupulus L. 
Not common, but the infested vines are usually well infected. 
