'3 



[Reprinted from MycologiaTVoT. \ II., No. 2, March. 1915.] 



220 



CULTURES OF UREDINEAE IN 1912, 1913 

 AND 1914. 1 



J. C. Arthur 



The present article is the thirteenth of a series of reports 2 by 

 the writer upon the culture of plant rusts, beginning in 1899 and 

 completing sixteen consecutive years. The work for the three 

 years covered by the present report has been done under the aus- 

 pices of the Indiana Experiment Station, as a part of a research 

 project supported by the Adams Fund. 



The heaviest part of the work each year falls in April and May, 

 and during this time the regular staff of the botanical department 

 of the Experiment Station is supplemented in order to take care 

 of the largely increased routine part of the work. In 1912 the 

 assistant for the culture work was Mr. L. O. Overholts, a senior 

 student of Miami University, Ohio, recommended by Dr. Bruce 

 Fink; in 1913 Mr. Ezra Levin, junior student with credits at the 

 Agricultural College of Michigan, recommended by Dr. Ernst A. 

 Bessey, was in charge; and in 1914 Mr. Carl B. Gibson, senior 

 student of Wabash College, Indiana, recommended by Prof. 

 H. W. Anderson, did the work. 



A large number of correspondents have assisted as in prev- 

 ious years by sending culture material, often by supplying informa- 

 tion from field observations, and sometimes by making special 

 trips to secure additional material or search for cultural clues. 

 To all such persons, and especially to those who have been to 

 trouble and expense in response to the wishes of the writer for 

 local aid, the most hearty thanks are accorded. Without the as- 

 sistance of observers in the field, the work of studying the life 

 histories of the rusts extending over the vast territory of North 



1 Presented before the Botanical Society of America at the Philadelphia 

 meeting, December 29, 1914. 



See Bot. Gaz. 29: 268-276; 35: 10-23; Jour. Myc. 8: 51-56; 10: 8-21; 

 11: 50-67; 12: 11-27; 13: 189-205; 14: 7-26; Mycol. 1: 225-256; 2: 213-240; 

 4 : 7-33, 49-65. 



61 



