306 
Mycologia 
Chester (F.P. 22369, 22370, 22371, 22372, and 22373) ; Frazer 
(F.P. 22374) ; Wayne (F.P. 22378) ; Wynnewood (F.P. 22381) ; 
Rosemont (F.P. 22382) ; Haver ford (F.P. 22393) > Allen Lane 
(F.P. 22391) ; Chestnut Hill (F.P. 22385, 22387) ; also by S. B. 
Detwiler (F.P. 22395). 
Delaware: Wilmington, by G. S. Mattingly, May, 1916 (F.P. 
22281) ; by George G. Hedgcock, June, 1916 (F.P. 22357, 22358, 
and 22359). 
Maryland : Baltimore, by J. A. Byrne, May, 1916 (F.P. 20877) 5 
by George G. Hedgcock, May, 1916 (F.P. 22303). 
Ohio: Cincinnati, by George G. Hedgcock, June, 1916 (F.P. 
22316). 
New Mexico: Estancia, by F. C. Werkenthin May, 1916 (F.P. 
22363 and 22364). 
Popiiliis deltoides 
In Pennsylvania : By George G. Hedgcock, June, 1910, Ber- 
wyn (F.P. ; Wayne (F.P. 22379) i Chestnut Hill (F.P. 
22388) ; Haverford (F.P. 22393). 
From the foregoing, it will be seen that the fungus has been 
widely distributed in the United States, since its present known 
range is from New Hampshire to New Mexico. However, a 
preliminary survey indicates that many localities are free from 
the disease. 
Dothichisa populea has been reported from Europe as follows : 
In Erance, according to Delacroix (i), Dothichiza poptdea was 
well established as early as 1903. He reported it at that time in 
Monterau (Seine et Marne), Villeneuvre-la-Guyard (Yonne), 
Montauban, Agen, and Paris. 
In Italy, according to Voglino (8), Cavaglia in 1901-1902 
noted cankers, apparently caused by Dothichiza poptdea, on 
Canada poplars near Santena. In 1906 Zoppa noted the disease 
near Crema. In 1907 Voglino, in addition to the localities pre- 
viously mentioned, received numerous reports of the disease from 
various regions in Italy, as well as from Sardinia and from 
Switzerland. 
In Germany no outbreaks of the disease have been reported. 
The writers so far have not found Cenangimn popidneum 
(Pers.) Rehm on poplars in the territory investigated, either 
