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Colletotrichum nigrum, E. & Hals. Upon the egg-plant are like- 
wise two, the Glwosporium Melongene, E. & Hals., and a Colleto- 
trichum, sp., found by the writer for the first time the past season 
in the trial plots of a large seed-grower, and, for reasons developed 
in this paper, remains unnamed as such. 
It will be seen that there is a G/wosportum and a Colletotrichum 
upon each of the three Solanaceous plants. 
By means of inoculations the G/wosporium of the tomato has 
been made to grow upon the egg-plant, and, what is of more in- 
terest, also upon the pear, banana, bean, quince and grape, while 
there was a mutual exchange effected with the apple; that is, the 
Gleosporium fructigenum, Berk., was successfully transferred to 
the tomato, as well as the native tomato Gleosporinm to the 
apple when it produced the true ripe-rot. 
No attempts were made, from lack of proper virus at the time, 
to grow the egg-plant G/wosporium upon any other fruit. The 
pepper G/lwosporium, however, was taken to the banana, pear, 
grape, persimmon, and a mutual exchange was made with the 
apple in the Glwosporium fructigenum, Berk. We have therefore, 
the ripe-rot of the apple thriving upon the tomato and the pepper, 
and it was grown also upon the egg-plant. 
By an axiom it would seem to be concluded that the three 
species of G/wosporium, which have no real structural differences, 
and recorded for the three Solanaceous plants are reducible to one, 
and that that one is the old and familiar bitter-rot of the apple, 
namely; Gleosporium fructigenum, Berk. Three years ago Miss 
Southworth, while in the Division of Pathology of the Department 
of Agriculture, proved in a similar manner that this bitter-rot was 
identical with an anthracnose of the grape, and because the affected 
grapes were not bitter, but nearly mature when diseased, the name 
ripe-rot was proposed. This term is well adapted for the further 
expansion ofthe species, and the specific name of fructigenum given 
by Berkeley is almost prophetic. 
The accompanying engraving was made from a photograph of 
one of the inoculations of the pepper ripe-rot germs from the 
apple. The appearance to the eye of the anthracnosed pepper 
was quite different from that of the apple, but the condition of 
flesh texture and character of the skin, etc., were very unlike, 
