20 KEPORT ON RECENT COLLECTIONS 



Gercospora tuberosa Ell. & Kell. 



On Apios apios, Long Pine. (12024) 

 'Fusiclddium depressum B. & Br. 



On Stum cictitifoliam, Kennedy. (12211) 

 Heterosporium gracilc (Walh'.) Sacc. 



On Iris pumila, Long Pine. (936) 

 Coniosporiurn niiserrimum Karst. 



Long Pine. (12209) 

 Stigmina clavulata (0. & Harkn.) Pound & Clements. 



Valentine. (12212) 



STILBACEAE 



Ooremium bicolor ( Web. ) Pound & Clements. 

 On dung in culture, Lincoln. (4593) 



ERYSIBACEAE 



* Sphaerotheca humuU (DC.) Burrill. 



On Rosa arJcansana, Rosa sp. (cult.), Qeiim canadense. 



Lincoln. (12213, 12219) 

 On Iris versicolor, Otoe county. (12077) 

 Sphaerotheca humuli fuliginea ( Sclilecht. ) Salmon. 



On Leptilon canadense, Lincoln (12221) ; Verbena 

 urticifolia, Otoe county. (12076) 



* Podosphaera oxycanthae (DC.) De Bary. 



On Prunus besseyi, Long Pine. ( 4630 ) 



* Microsplvaera alni (DC.) Wint. 



Juglans nigra, Lincoln. (12215) 



* Erysibe cichoracearum DC. 



On Scutellaria lateriflora, Atkinson (12031) ; Aster 

 paniculatus (1047), Helianthus Hgidus (12227), 

 Helianthus grosse-serratus (12230), Lappula mrgin- 

 ica (12228), Parictaria pennsylvanica (12229), 

 Plantago rugelln (1225), Lincoln. 



* Erysibe graminis DC. 



On Poa pratensis, Lincoln. (1221G) 



