394 



TEXT-BOOK OF FUNGI 



Leptostromeae 



A small family consisting of very minute forms growing 

 on dead or dying leaves, twigs, etc. In most species the 





FIG. 128. Gloeosporium ampelophagum, a destructive para- 

 site attacking the vine, i, appearance of the disease on a 

 leaf, stem, and tendril of the vine ; 2, diseased patches on 

 grapes ; 3, section through a pustule of fungus fruit produced 

 on a young grape ; 4, conidia. Figs, i and 2, reduced ; the 

 others mag. 



