THE NAME OF THE FUNGUS. 



27 



or ripe rot of fruits, and decided to accept the name Glceosporium 

 fructigenum Berk, for the fungus causing the bitter rot of apples. 

 She gives her reason for so doing in the following words: 



The strict law of priority might demand that we now make the specific name rufo- 

 maculans, but since the better-known G. fructigenum is also Berkeley's name it will 

 remain so in this paper. 



At this point it will be necessary to refer again to the results which 

 Miss Southworth obtained by inoculating grapes with spores of the 

 apple bitter-rot fungus {Glceosporium fructigenum Berk.) and apples 

 with the grape ripe -rot fungus (Glceosporium rufo-maculans (Berk.) v. 

 Th.). In both cases a bitter rot or a ripe rot of the respective fruits 

 followed, which led Miss Southworth to regard the bitter-rot fungus 

 and the ripe-rot fungus as one and the same species. The experiments 

 of Halsted (1892) seemed to verify Miss Southworth's experiments 



Fig. 5.— Berkeley's apple-rot fungus {Glceosporium fructigenum Berk,). 



figure.] 



[Drawn from the original 



and to show that the same fungus caused the ripe rot not only of 

 apples and grapes, but also of quinces, pears, peaches, nectarines, 

 peppers, and other fruits. 



Summing up the foregoing, it appears that several fungi causing 

 fruit rots have been described under the impression that they were 

 distinct species. More recent investigations have demonstrated that 

 in all probability the same fungus has caused the various ripe rots of 

 fruits. The different forms variously described as Glceosporium fruc- 

 tigenum, Glceosporium rufo-maculans, Glceosporium versicolor, and 

 Glceosporium Iseticolor probably differ only in minor characters, such 

 as in the size and form of the spores. The effects which they produce on 

 different fruits vary as to color, size of spots, etc. These differences 

 are readily intelligible in view of the better knowledge which we now 



