VOLUME 6, } 
No. 2. 5 
JOURNAL OF MYCOLOGY 
( ISSUED 
( September 10, 1890. 
EDITED BY 
THE CHIEF AND HIS ASSISTANTS. 
CHIEF, 
B. T. GALLOWAY. 
Effie A. Southworth. 
ASSISTANTS, 
David G. Fairchild. 
Erwin F. Smith. 
ANNOUNCEMENT. 
By a recent act of Congress the Section of Vegetable Pathology has 
been made a Division, thereby placing it on an equal footing with the 
other branches of the Department. In view of the fact that the change 
in name necessitates the inauguration of a new series of bulletins, it 
seems a fitting time to modify somewhat the manner of issuing the 
Journal. In the future, therefore, it is proposed to issue this publi¬ 
cation at least four times a year, but instead of having it appear quar¬ 
terly, as heretofore, we shall endeavor to publish it whenever there is 
sufficient material on hand to warrant us in so doing. There will be no 
changes made in the paging of the present volume, which will continue 
until four numbers, counting the one previous to this, are issued. 
A NEW HOLLYHOCK DISEASE. 
Plate III. 
By E. A. Southworth 
Five or six years ago a very destructive disease made its appearance 
among seedling hollyhocks in a few large greenhouses in this country; 
it has since extended to various places in New York and New Jersey, 
and has nearly put an end to growing hollyhocks for bedding in the 
Government propagating houses in Washington. 
Only a few firms grow hollyhocks in the greenhouse tor bedding 
purposes, but these few are in most cases losing nearly their entire 
crop ; and a reputable florist reports that the disease has quadrupled 
the price of hollyhocks in New York in the last two years. This mal¬ 
ady is entirely distinct from either the well known hollyhock disease 
of England (Puccinia malvacearum , Mont.) which swept through the 
country a few years ago and destroyed many of the hollyhocks grow¬ 
ing in gardens, or from the spot disease caused by Cercospora althceina y 
Sacc., described by Dr. B. D. Halsted in the Garden and Forest, March 
26, 1890. 
