140 Repokt of the Department of Botany of the 



them back and planted them, losing less than two per cent, 

 although they were not set until May 1. The owner states that 

 had he been doing a retail business he could undoubtedly have 

 disposed of a large proportion of the stock at a fair price, but 

 it was impossible to sell it at wholesale. 



II. SHOT-HOLE FUNGUS ON CHERRY FRUIT PEDICELS. 



In New York State the shot-hole fungus, Cylindrosporium padi 

 Karst., does more or less damage every season. It is destruc- 

 tive to both plums and cherries in the nursery and in the 

 orchard. During the past season it was unusually destructive. 

 Among cherries, the variety English Morello is especially sus- 

 ceptible to the disease. Trees of this variety were dropping 

 their leaves quite freely as early as June 26 and in some cases 

 the trees were nearly defoliated by August 1. 



On June 26, while examining some seriously affected English 

 Morello trees at Milton, it was observed that many of the fruit- 

 pedicels bore brown spots of considerable size. Upon micro- 

 scopic examination it was found that the spots were caused by 

 the shot-hole fungus, Cylindrosporium padi. 



On July 11 the same thing was observed at Highland. In this 

 case there was a long row of English Morello trees, all heavily 

 loaded with fruit. So many leaves had fallen that the trees 

 looked bare. The fruit-pedicels were so generally attacked by 

 the fungus that it was somewhat difficult to find one which was 

 entirely free from the brown spots. The spots were from one- 

 eighth to one-fourth inch in length and extended one-third to 

 one-half the distance around the pedicel. In many cases they 

 completely encircled the pedicel. Often the spots coalesced, and 

 then a large portion, or even all, of the pedicel was brown. 

 Even with the unaided eye one could detect a white speck or, 

 more often, a white rift, at the center of each spot. With the 

 aid of a hand lens it could be plainly seen that the white specks 

 were gelatinous spore masses. The affected pedicels almost 

 invariably showed an abundance of the spores. The same was 



