LABORATORY MANUAL OF HORTICULTURE 



varieties. Is there any difference between the fruit spurs of the 

 pear and of the apple ? Describe fully. What differences do 

 you note in the fruit bud and in the branch bud of each. Describe 

 the difference in the color of the bark, in the pubescence, and in 

 the lenticels, etc., as seen in the different varieties. 



2. Make a drawing, two inches in 

 length, showing the leaf scars. Explain 

 the cause of these scars. 



3. Draw a cross section, at least one 

 inch in length, of a branch bud and a fruit 

 bud. Cut a longitudinal and a cross sec- 

 tion of both the fruit bud and the branch 

 bud and describe any differences between 

 the pear and the apple. Note and describe 

 any varietal differences. How do the 

 fruit spurs of the apple and pear differ 

 from those of the cherry and plum ? 



THE QUINCE {Cydonia vulgaris) 



The quince is a fruit similar in struc- 

 ture to the apple and the pear. It is 

 borne upon small, irregular-growing 

 trees from ten to twelve feet high, and 

 is a most excellent fruit for preserves. 



Study the quince in the same way as 

 the apple and the pear. The follow- 

 ing varieties are suggested : Orange, 

 Chinese, Portugal, Champion, Angers. 



1. Make a drawing of a branch, four 

 inches in length. How does the branch 

 of the quince differ from that of the apple 

 and the pear? 



2. Make a longitudinal and a cross section of a bud, one inch 

 in length. Where are the fruit buds found, and how do they 

 differ in position from those of the apple and the pear ? Where 

 are the branch buds found ? Describe. 



3. Describe fully the difference in the buds of the three fruits 

 in respect to position, structure, size, and shape. 



REFERENCE : 



Bailey, " The Pruning Book," pp. 30-46. 



[70] 



1 



FIG. 16. Branches of the 

 quince, showing the buds 



