﻿162 H alsted : Mycological Notes 



necticut Experiment Station for 1889, when it is stated that it was 

 first noticed in September of that year, and in some cases a large 

 portion of the crop was destroyed. 



Particular emphasis is placed upon the date of the discovery 

 and the fact that it was very abundant at the time it was taken, 

 because that was the year in which the three months of July, Au- 

 gust and September gave a total rainfall of 2.733 inches for New 

 Jersey, and presumably as wet in Connecticut, which is Q. KA. inches 



more 



Since 1889 the Pliytophtliora has been scarcely heard of until the 

 present season when it has been as above stated so prevalent in 

 some fields as to ruin the crop. 



A fair sample of a diseased pod is shown in the engraving 

 where the enlargement is double the normal size of all the parts. 

 The mildew has a particular fondness for the pods and will attack 

 them soon after flowering ; in fact it was not difficult to find the 

 whole inflorescence covered with the conidiophores before the first 

 flower had come into bloom. The engraving shows also the gen- 

 eral habit of the Phytophthora upon pods of two inches in length, in 

 that it frequently makes its attack near the middle of the dorsal 

 margin, and from there spreads over the pod towards the end and 

 ventral suture and makes its densest growth of hyphae over the 

 young seeds from which the needed nourishment is doubtless ex- 

 tracted abundantly. 



December 15, 1897. 



