LABORATORY MANUAL OF HORTICULTURE 



of each. What difference is observed between the two? How 

 are they arranged, and where do you find the branch buds with 

 reference to the fruit buds ? Describe the scales and pubescence 

 of the buds ? 



c. Make a longitudinal and a cross section of both a flower bud 

 and a branch bud. How do the flower buds and the branch buds 

 differ in internal and in external structure ? How many ovules 

 are present in a flower bud ? Is the number constant or vari- 

 able ? How old is the wood on which the flower buds are found ? 

 Does the age of the wood on which the flower buds are borne 

 differ from that of the other fruits studied ? 



2. Persian race. The Persian race (Amygdalus persica) in- 

 cludes the following varieties : Lemon, Alexander, Conkling, 

 Crawford's Late, Golden Drop, Old Mixon Free, St. John, Sal- 

 way, Scott, Mountain Rose, Hale Early, and several others. 



The trees of this race are of medium size, with short, thick 

 limbs. The bark on the young wood is usually a rich purplish 

 red. The bloom is variable, and the foliage is crumpled and has 

 a purplish tinge. The trees require a long period of rest. The 

 fruit is highly colored and of good flavor. This race is best 

 adapted to northern sections and is not recommended for 

 Southern planting. 



a. Study branches from several of the above-named varieties. 

 Make a drawing, natural size, and four inches in length, showing 

 the details of the branch and of the fruit buds and branch buds. 

 How are the buds arranged, and does this arrangement differ from 

 that of the North China race ? What is the color of the bark on 

 the small branches ? Is the color constant or variable ? 



b. Make a drawing, at least one inch in length, of both a flower 

 bud and a branch bud. Compare the buds with those of the 

 North China race in respect to size. Describe. 



3. South China race. The South China race (Amygdalus per- 

 xica) includes the following varieties: Honey, Pallas, Climax, 

 Coleman, Early China, and others. 



The trees are of medium size, and the branches come out at 

 an angle of about fifty degrees and are less willowlike than the 

 Peen-to. The bloom is large and profuse. This race is valuable 

 for Southern planting. 



Secure branches from one or more of the above varieties 

 and study carefully. Make a drawing, natural size, and four 



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