132 Report oF THE DEPARTMENT OF BoTANY OF THE 
been excessively virulent. In some localities currant leaves have 
been so severely attacked by it that their vigor was destroyed 
and they fell to the ground long before the usual time. In my 
own garden the currant bushes were as destitute of foliage in 
August as they usually are in November.” 
Since 1889 it has been mentioned by Pammel® as occurring on 
red currants in Jowa and Halsted’ has reported its occurrence 
on cultivated gooseberries in New Jersey; but we find nothing in 
the literature to indicate that ithasbeen at all destructive during 
the past eleven years. However, from our own observations we 
are inclined to believe that in New York, particularly in the Hud- 
son Valley, it occurs to some extent nearly every season and 
that, in some instances, it has been destructive. June 12, 1897, 
Mr. H. R. Leeder of New Paltz reported to the station that his 
currants were dropping their leaves badly. The specimen leaves 
accompanying his letter showed an abundance of Gleosporium 
ribis which was probably the cause of the leaves dropping. It is 
noteworthy that this outbreak, like the one of the present season, 
occurred before the middle of June. On July 7 of the same year 
Mr. F. A. Sirrine observed that in the vicinity of Highland cur- 
rants were dropping their leaves badly. Specimens of the fallen 
leaves were examined by one of the writers of this article and 
found to be infested with Cercospora angulata and Gleosporium 
ribis. June 28, 1900, we observed a plantation of red currants on 
Long Island which was severely attacked by Gleosporium ribis. 
Septoria ribis was also present in small amount. In this planta- 
tion the Glwosporium had attacked the fruit stems to so great an 
extent as to attract the attention of the foreman in charge. 
Nevertheless, we saw no evidence of damage from this cause. 
None of the berries were dropping or shriveling. Dr. B. M. 
Duggar informs us that Glwosporium ribis was abundant on cur- 
4Pammel, L. H. Journal of Mycology, 7:101. In a letter dated Novem- 
ber 5, 1901, Prof. Pammel writes us that he has not observed the disease 
in Iowa since 1891. 
“Halsted, B. D. N. J. Agr. Coll. Exp. Sta. Report for 1895, p. 331. 
