NOTES FKOM THE BOTANICAL DEPARTMENT * 



p. C. STEWART AND H. J. E)USTACE. 



SUMMAKY. 



I. In a nursery cellar at Rochester 25,000 pear trees were 

 seriously injured by thawing too suddenly. The sand covering 

 the roots of the trees had become frozen, and in order to facili- 

 tate the removal of the trees a fire was built in the cellar. A 

 few days later it was found that the upper parts of all the trees 

 had turned black. Although the trees were practically unin- 

 jured for planting, it was impossible to dispose of them at 

 wholesale, and they were almost a total loss to their owner. 



II. The shot-hole fungus so destructive to the foliage of cher- 

 ries and plums has been discovered attacking the fruit-pedicels 

 of cherries. This discovery is of considerable scientific interest, 

 but it has little or no practical bearing on the control of the 

 disease. 



III. The fungus of antirrhinum anthracnose which was sup- 

 posed to be confined exclusively to the antirrhinum has recently 

 been found on a common weed called yellow toad-flax. Since 

 this weed may communicate the disease to the antirrhinum, the 

 treatment of the disease on the latter is a more complicated mat- 

 ter than has been supposed. 



IV. It has been observed that imperfectly fertilized peaches 

 may attain considerable size and remain hanging on the trees 

 until September. In such cases this trouble may be mistaken 

 for the " little peach " disease by persons unfamiliar with the 

 latter. However, in the " little peach " disease the pit is of 

 normal size and provided with a well-developed kernel; while in 



*A reprint of Bulletin No. 200. 



14S 



