400 



THE MICBOSCOFE. 



its granular contents in the stem. One of the most remarkable of this 

 tribe has been committing great devastation among our grape crops 



^g> 



fig, 187. Fungoid disease. 



1. A section of tlie Tomata, showing the sporangiss growing from the spawn or root 

 (mycelium). 2 shows a budding from the upper part of a branch. 3. Vertical and 

 lateral view of sporangise, with their granular contents turned |0ut. 6, 7, and 8 

 show different stages of growth of Mycoderma cervisia. 9. Torula diabetica, 



during the past two years. A section of the grape, magnified 75 

 diameters, is seen in fig. 188 ; the fungi or mildew is growing from a 

 section of the skin of the grape. 



" Grapes," says Mr. Harris, " when blighted, are covered with 

 what appears to be a white powder, like lime, a little darkened with 

 brown or yellow. These fungi send forth laterally, in all directions, 

 thread-like filaments, which become so completely interwoven with 

 one another as entirely to cover and enclose the skin of the grape in a 

 compact and firm network, and on each is seen the egg-shaped capsule 

 or seed-pod." 



