430 
Arthur herbarium at the Purdue Experiment Station. An attempt has 
been made to show the distribution within the State by counties. Under 
each host is given a list of the counties within which the species has been 
collected, together with the name of the person making the first collection 
and the year in which the collection was made. <A considerable number 
of the collections which have been recorded in the first lists were not available 
to the writer. These have been included in the distribution only when there 
seemed to be no chance of mistaking their identity. A few species evidently 
wrongly determined of which no specimens were available, have been omitted. 
The nomenclature followed is that of Dr. J. C. Arthur as used in the 
N. Am. Flora, volume 7, in so far as that admirable work has been com- 
pleted, or as proposed for the unpublished portion. The nomenclature of 
the hosts in general conform to that of Britton & Brown, Hlustrated Flora, 
2nd edition. 
For convenience in consulting the list, the species not previously recorded 
are marked *. Hosts not previously recorded are printed in black-faced 
type. References are inserted following the host name to the year and 
page of preceding volumes of the Proceedings, where additional information 
may be obtained. Wherever Indiana rusts have appeared in published sets 
of exsiccati reference is made following the collector’s name. Reference 
by number is made to the rusts included in the set of Parasitic Fungi dis- 
tributed by the Indiana Biological Survey. December, 1894. Series 1. (See 
Proceedings 1894:154-156. 1895.) 
It is the plan of the writer to submit additions and corrections to this 
list as material is collected. It would be greatly appreciated if collectors 
would send duplicates of their collections to the writer. 
The writer wishes to acknowledge his indebtedness to Dr. J. C. Arthur 
for the unrestricted use of his herbarium and notes in the preparation of this 
list without which any approach to completeness would have been im- 
possible. Dr. Arthur has also kindly read the manuscript and offered many 
helpful suggestions. 
