New YorK AGRICULTURAL EXPERIMENT STATION, 263 
through it. They measure 90-150 » and are more or less de- 
pressed by the epidermis. The spores are oblong-ovoid, hyaline 
and mostly continuous, measuring 7-10 wp, the longest ones 
often being uniseptate.—Probably a Phoma as indicated before. 
These, together with the greenhouse and field observations, 
to be given later, seem to show that Chester’s Phyllosticta 
citrullina may be retained in the genus Phyllosticta, and that 
it at least should not be connected with Smith’s “ Ascochyta 
on squash stems.” However, nothing can be said about the 
real relation of Phyllosticta citrullina Ches. and Smith’s “ As- 
cochyta ” on squash rind, except that according to the accepted 
scheme of classifying Deuteromycete they belong to different 
form genera, that on the rind being morphologically a Phoma. 
The material marked “ Ascochyta on squash stems ” probably 
underwent some change after it was examined and labeled, since 
it had mostly perithecia of the Mycospherella-wilt fungus. 
Some of the writer’s observations also indicate that the pyenidia 
of this fungus may later change to perithecia by the develop- 
ment of asci from the interior of the basal portion of the fruit- 
ing body. In fact the mixture of these perithecia and pycnidia 
of the Mycospherella-wilt type, under the label Ascochyta by 
its own author, indicates, not only that Smith’s Ascochyta and 
Spherella are connected, but also, that he had the fungus 
under discussion in this bulletin. 
THE WRITER’S WORK OF 1907. 
As intimated in the introduction of this bulletin, the work, on 
this disease-producing fungus, had been completed and the dis- 
cussion put in type before any reference to it had been found 
elsewhere. The following is simply a scissors-and-paste report 
of the work of 1907; the present year’s (1908) re-examination 
of the disease and of the fungus causing it, is briefly given 
afterwards. 
DISEASE NOTICED. 
The muskmelon vines in the Station greenhouse had prac- . 
tically reached their full growth before any trouble appeared. 
