alt ibe SUS fea Sake ake 
1898 ] THE DEVELOPMENT OF SOME ANTHRACNOSES 79 
chocolate colored or dull pink margin. Upon teasing out the 
colonies and examining them under the microscope, the conidia 
were found in all stages of germination. Some of them pre- 
sented a dumb-bell appearance, while in others the germ tube 
about equaled the conidium in diameter, so that it could scarcely 
be distinguished from the vegetating mycelium. This crowded 
growth, and the rapid germination of the conidia in the colony, 
probably accounts for the small size attained by the colonies and 
their dense, hard, interwoven character. 
On sectioning portions of the bean stems upon which the 
fungus was growing, within the tufts of mycelium were found 
perithecia-like bodies with delicate walls of closely interwoven 
mycelium. These were quite small, measuring from 60 to 70 
in diameter, ovate or pyriform. The peripheral cells were light 
brown, the interior was filled with light colored cells rich in pro- 
toplasm. While this condition suggests an ascigerous stage in 
connection with the fungus, it has not yet matured. 
On the hyphz surrounding these bodies were developed 
buds or gemmae; these were smaller than those found in other 
species but were of the same general shape, and of a dark brown 
color, 
Synonymy.—Gleosporium venetum Speg. is commonly regarded 
as a synonym of G. necator E. & E., the original distinction 
being that the former one affected the leaves while the latter was 
confined to the stems. This distinction is now seldom regarded, 
the description of the two as found in a natural state agreeing 
so closely that there is little doubt as to their identity. Not hav- 
ing obtained cultures from the fungus on the leaves, the writer 
is unable to discuss their growth characters in nutrient media. 
Gleosporium naviculisporum, n. sp. (/igs- 77, 58-61). 
While attempting to obtain a culture of G. venetum, a species 
of Gleeosporium was found on twigs obtained from Mr. Pearson, 
of Vineland, N, +, This proved to be quite a different species, 
although the conidia were obtained from canes quite badly 
affected with the characteristic spots caused by G. venetum. 
