BUDS 



69 



cherry were studied, but later only one variety oi each 

 fruit was studied. Even these involved the preparation 

 of many hundreds of mounts, mostly only those sections 



taken transversely 

 through the pistil 

 of the flower bud or 

 through the center 

 of the bud cluster. 

 In early Novem- 

 ber comparisons of 

 sections of fruit 

 buds from 25 varie- 

 ties of plums 

 showed a surpris- 

 ingly wide range of 

 development in- 

 stead of expected 

 uniformity. Hale, a 

 Japanese variety, 

 showed the most 

 advanced develop- 

 ment with flower 

 parts apparently 

 ready to unfold, 

 pollen grains well 

 formed, pistils well 

 developed, ovules 

 in the ovaries and 

 buds decidedly 

 swelled, as though 

 preparing to open. 

 On the other hand, 

 some varieties, es- 

 pecially among na- 

 tives, showed very slight development, even during the 

 latter third of the month. Shortly after mid-December, 

 examinations of 20 apple varieties showed a narrower 



FIG. 51 GRAPE CANE ONE YEAR OLD 

 The small piece at the base of the left section is 

 two-year-old wood. The little knob at A is not a 

 bud, but the remains of a lateral. Normally, buds 

 develop opposite tendrils or fruit clusters (modified 

 tendrils). Most of the tendrils in the specimen 

 were broken off during the growing season. Each 

 bud is capable of producing a new cane bearing 

 leaves, fruit clusters and tendrils. 



