ON FUNGOID DISEASES OF THE VINE. 
119 
this year by a new disease caused by a special fungus, which I 
believe, with Monsieur Planchon, to be identical with the Phoma 
uvcecola. This disease, which has received the name of Anthrac- 
nose, is characterised by its peculiar effects on the boughs and 
leaves, and on the grapes. This parasite produces on the grapes a 
circular spot, black as if burnt, in the middle of which a smaller 
white circle is seen formed by the development of the conidiferous 
form of the fungus. 
“ On the stem these black spots become depressed circles; the 
stem appears corroded, and burnt through to the woody tissue, 
sometimes to the pith. It is this peculiar effect whichlhas caused 
the disease to be sometimes designated by the characteristic name 
of canker {chancre). 
11 On the leaves spots of different sizes are seen, more or less 
confluent, formed by the dried up tissue which has been affected 
by the influence of the parasite.” 
This is all the information which the said communication 
contains with regard to this new disease. It was stated at one of 
the meetings of the Mycological session last autumn, that the 
disease was a threatening one and likely to assume considerable 
importance. Specimens were at the time exhibited, and a portion 
of these was placed in my hands showing the scorched spots of the 
branches, and also some shrivelled grapes. I have examined both 
in vain to find spores of the Phoma. There are distinct appearances 
on the stems of the perithecia of a Phoma , b*ut without spores. In 
my mind Dr. Cornu has not established the identity of this disease 
with Phoma uvcecola , B. and C., at all satisfactorily. Hone'of the 
evidence is given in the foregoing extract. 
Phoma uvcecola , B. and C., is a Horth American species which 
occurs on grapes, and I believe upon the fruit only, in Horth 
America, where it is not regarded with much dread, or considered 
any great pest. Specimens from South Carolina have recently 
been distributed in Bavenel’s “ Eungi Americani ” (Ho. 17). The 
perithecia are quite distinct on the dried berries, and the minute 
spores may be obtained from them in profusion. In the original 
description there is no mention of burnt spots, and the dried 
specimens of grapes from the Harbonne district and from South 
Carolina have not the appearance of identity. Again, the American 
Phoma does not attack the leaves or the stems, and hence is much 
more superficial, which must be taken into account in such simple 
forms of fungi. Einally, the scorched spots on the stems and 
