THE UREDINALES OF INDIANA III? 
H. S. Jackson, Purdue University. 
The following report on the rusts of Indiana is suplementary to lists 
published in the Proceedings of the Indiana Academy of Science for 1915 
and for 1917. 
The present paper is divided into two parts. In the first part an attempt 
has been made to list all the unrecorded hosts for species included in the 
1915 and 1917 lists. Most of these host records represent new collections, 
Some of them, however, are corrections to previous determinations, while 
others represent collections which were overlooked. In a few cases the 
determination of the rust has been found to be incorrect and corrections 
of such have also been made. No attempt has been made to list the large 
number of collections which have been made on hosts already recorded. 
The number preceding the species name in this paper is the same used 
for that species in previous lists. The nomenclature, however, is not the 
same. In the 1915 list the nomenclature used was that proposed by Dr, J. 
C. Arthur and based largely on life histories. In the present list the more 
familiar generic names Puccinia and Uromyces are retained. In each 
case, however, the name used in the 1915 list is given as a synonym. 
In the second part, twelve rust species which are new to the flora of 
Indiana are recorded. These are numbered consecutively with the two 
previous lists and bring the total number of species for the state to 167 
(Nos. 36 and 70 are to be dropped so that the real total is 165). 
In order that the series may be more useful to collectors a complete host 
index has been prepared by Miss Evelyn Allison and is appended. 
Acknowledgment is gratefully made to all those who have contributed 
specimens. The name of the collector is given for each collection except 
where made by the writer. Special acknowledgment is due Mr. C. C. Deam 
who through his keen observations and knowledge of the state flora has 
made many notable additions. Mrs. Agnes Chase, Mr. K. K. Mackenzie 
and Mr. Paul C. Standley have determined many of the hosts. 
All of the collections recorded are represented in the Arthur herbarium 
at the Purdue University Agricultural Experiment Station. 
ADDITIONS AND CORRECTIONS TO PREVIOUS LISTS. 
6. COLEOSPORIUM SOLIDAGINIS (Schw.) Thiim. 
ON SOLIDAGO BICOLOR L. 
Two miles east of Corydon, Harrison Co., Oct. 6, 1920, C. C. Deam 
33455. 
_ ON SOLipaAGo ERECTA PURSH. 
North of St. Joe, Clarke Co., Oct. 25, 1916, C. C. Deam, 22468. 
ON SoLipaco JuNcEA AIT. 
One-half mile south of West Lafayette, Tippecanoe Co., Oct. 30, 1920. 
*Contribution from the Department of Botany, Purdue University Agricultural 
Experiment Station. 
: “Jackson, H. S. The Uredinales of Indiana. Ind. Aéad. Sci. Proe. 19 
oo 1916. The Uredinales of Indiana II. Ind. Acad. Sci. Proce. 133-13 
