Sept 1896.] 



INJURIOUS INSECTS AND FUNGI. 



155 



The fungus is most easily found upon the narrow brown line 

 dividing the decaying from the sounder part of the fruit, which 

 is generally red, or yellowish red, indicating premature ripening. 



Whole tomato, infected. AA, Lower part invaded by fungus. Section of 

 tomato : — AA, showing decay caused by fungus, and shrivelled seeds ; D, the style,, 

 the point of attack ; BB, Points of unsuccessful attack of the fungus ; C. Fungus, 

 x 600. 



Its action causes decay and rottenness, which extend in some 

 cases nearly to the centre of the fruit in the form of a black mass 

 in which are easily traced the mycelia of saprophytic fungi. 

 The seeds are usually shrivelled, as shown at the lower end of 

 the tomato in the above illustration, prepared by Mr. Worthington 

 G. Smith. It is supposed that the Cladosporium first gains an. 

 entrance into the tomato by means of the decaying style, which 

 persists for a considerable time after the fruit has formed. From 

 the blotches with tiny dark centres upon the tomato in the 



