CULTURES OF UREDINEAE IN 1915^ 
J. C. Arthur 
The present article is the fourteenth of a series of reports* by 
the writer upon the culture of plant rusts, beginning in 1899 and 
completing seventeen consecutive years. With this report it is 
proposed to bring the series to a close. Hereafter the record of 
such cultures as may be undertaken will be made in whatever con- 
nection may be found advantageous. To render the work brought 
together in the present series more readily accessible, and to 
make clear the changing point of view dominating the work, it 
is proposed to prepare an index and a brief historical statement, 
to be issued in the early future. 
During the year 1915, little traveling was undertaken for the 
purpose of securing culture material and information. Two trips 
were made by the writer, the first one in April, the second in June, 
the first one in company with Mr. H. E. Ford, in order once more 
to explore the Kankakee marshes, in the northern part of Indiana, 
especially to gather information about Puccinia Seymouriana on 
Spartina. The rust was found in the greatest profusion, and 
specimens were taken from different parts of the region. Only 
one of these specimens showed viability, without much strength, 
and no infection was obtained from it. It is difficult to surmise 
what could cause such low viability, especially as the winter was 
mild and favorable to vegetation. 
Correspondents in various parts of the country, as in previous 
vears, have sent material for cultures, of both the rusts and the 
living host plants. A number of correspondents took extra 
trouble to respond to requests for particular species, and to such 
1 Presented before the Botanical Society of America at the Columbus meet- 
ing, December 30, 1915. 
2 See Bot. Gaz. 29:268-276; 35:10-23; Jour. Myc. 8:51-56; 10:8-21; 
II : 50-67; 12:11-27; 13:189-205; 14:7-26; Mycol. 1:225-256; 2:213-240; 
4: 7-33, 49-65; 7: 61-89. 
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