+ 
BOTANICAL GAZETTE 
MARCH, 18093. * 
On Monilia fructigena. 
JAMES ELLIS HUMPHREY. 
WITH PLATE VII. 
During the past fifteen years or more, attention has several 
times been directed, especially by American writers, to a 
parasitic fungus which causes great destruction of the fruits 
of certain cultivated Rosacee, chiefly Prunee and Pomee. 
t is most common on the stone-fruits, so that the affection 
to which it gives rise is ordinarily known in America as the 
“brown rot of stone-fruits.” This fungus has been called by 
Most recent writers Wontlia Sructigena Pers., but was earlier 
known as Zoru/la Jructigena Pers., Acrosportum fructigena 
Pers., Ocdium Sructigenum Lk., Oidium laxum Ehr., Oidi- 
um Wallrothiz Thiim., and Oospora fructigena Wallr. It 
appears to have been first named Torula fructigena by Per- 
soon’, and was subsequently transferred by him? to the genus 
MNonilia, 
The plant wasfora long time regarded asasaprophyteand von 
umen® and Halliert seem to have been the first to point 
out its economic importance. Thiimen subsequently® dis- 
m . €ven at present, it does not appear to be 
*cognized in Europe as a source of loss to the extent that is 
rst : by its ravages in America. Here it was 
described by Peck,*® in 1881, and by Arthur,” in 1884. 
$529 
1801, 
-» 1875, n. 41, p. 484. 
ene u. Garten-Zej 
‘ Fungi Pomicoli, p fg ti 1876, p. 117. 
34th Rep't N ‘Wie °P : 
4th Rept ne, State Museum, p. 35. See also 43rd Rep’t do. p. 6. 
ept N.Y. Agr, Exp. Sta., p. 254. 
7—Vol. XVIII.— No. ne 
