141 



Indiana Fungi — III. 



J. M. Van Hook. 



The fungi recorded in the following list, were for the most part collected 

 from 1911 to 1914. Two of these years (1913 and 1914) were so dry that the 

 collecting of certain groups of fungi was practically abandoned. The year 

 1915 was a record one for the growth of all kinds of fungi and large collections 

 were made for future study. 



A limited number of fungi already recorded occur herein, as these have 

 been found on new hosts. 



Great care has been exercised in determining the host species, a thing too 

 much neglected by collectors in the past. 



Most of the species have been collected in Monroe county. Where the 

 name of the county is not given, it is understood that the specimen was 

 found in Monroe county. All collections were made by myself unless other- 

 wise specified. 



PHYCOMYCETES. 



Albugo bliti (Biv.) 0. Kuntze. On liviua - leaves of Amaranthus i-otro- 

 flexus. Common. Monroe county, September, 1915. 



Albugo ipomoea-panduratae (Schw.) Swingle. On leaves and stems of 

 Ipomoea hederacea. Monroe county, August 2, 1915. 



Chaetocladium jonesii Fresenius. Parasitic on Mucor in culture, in the 

 greenhouse. December 28, 1912. C. E. O'Neal. 



Piptocephahs freseniana De Bary. On Mucor. Greenhouse, December 

 28, 1912. O'Neal. 



Phycoruyces nitens (Ag.) Kze. On horse dung brought into greenhouse, 

 January 7, 1913. O'Neal. 



Plasmopara viticola (B. & C.) Berl. & DeToni. On leaves of Vitis cordi- 

 folia. July, 1915. Very destructive. 



Thamuidium elegans Link. On dung in greenhouse, December 22. 1912. 



