209 

 INDIANA FUNGI— V. 



J. M. Van IIook. 



Ill tlio present jiapor. sixty-cijrlit spccit-s ;iro listc*!. For the most part, 

 iliese have been eolloctpd since lOlH. While they are not all new to 

 Indiana they are new to the siiecies in the herl)arinm of Indiana University. 

 The object here is not merely to mal<e a list of those fungi new to the state, 

 but to study independently all those brought to our notice or collected for 

 llie purpose of study, in Indiana. In these studies, special attention will 

 lie given to the so-called Imperfect Fungi and to extend the number of hosts 

 of a single species. 



The author has appended corrections and additions to the descriptions 

 already given, since many of the earlier descriptions are so meager that 

 many specimens which should have been referred to them, have doubtless 

 b(H>n published as new si)ecies. These merely needed redescriptions. It is 

 I he belief of the author that a more critical study of material gathered in 

 (luantity and in various conditions of development, will go far to discourage 

 new species making, as well as to bring about the reduction of the number 

 (if tho.se already listed. The discovery of new hosts is especially to be 

 desired as the form of the fungus may vary considerably with the host. 

 The neglect of this careful study in the past has been conducive to the mak- 

 ing of new species. While many new species exist, and while we have a 

 number for future publication, we have come to believe that we can render 

 a greater service to botanical science by extending descriptions already 

 published. 



Under those listed, no attempt has been made to give complete descrip- 

 tions, but to note the variation from the original descriptions and to ex- 

 tend those descriptions. 



When the place of collecting is omitted, it is understood to be Monroe 

 County; likewise, when the collector Is not mentioned, the specimen was 

 collected by the author. 



PHYCOMYCETES. 



Albugo Portulacae (D.C.) O. Kuntze. On living leaves of Portulaca oler- 

 acea. Greene County, September 20, 1914. Weatherwax. 368(;. 



Empusa Muscae (Fr.) Cohn. On body of common housefly. Fly fastened 

 to leaf of ash. July 28, 1916. 3697. 



USTILAGINALES. 



Schizonella melanogramma (D.C.) Schroet. Abundant on Carex picta. 

 Huckleberry Hill, May 25, 1917. 3746. 



Sphacelotheca Sorghi (Link) Clinton. On broom-corn, causing grain 

 smut. October 25, 1918. Weatherwax. 3758. 



THELEPHOKACEAE. 



Corticium cinereum Fr. On dead hickory, Bollman's Woods. March 6. 

 1902. F. Mutchler. 3724. 



Stereum spadiceum Fr. On dead red oak bark, Huckleberry Ravine, Octo- 

 ber 22. 1917. 3749. 



