LEAVES, BUDS AND FLOWERS 



81 



131. Leaf-buds and flower-buds. — Buds may contain 

 only rudimentary leaves, or they may contain rudimen- 

 tary flowers, with or without leaves. The former are 

 called leaf- or wood-buds the latter flower- or fruit-buds. 

 Flower-buds are modified leaf-buds. Both originate in 

 the cambium layer (68) and are normally located at 

 the apex of the stem or in the axil of a leaf (127-128). 

 132. Differences between leaf- and 

 flower-buds. — Flower-buds are often 



Fig. 38. 



Fig. 39. 



Fig. 40. 



Fig. 41. 



Fig. 42. 



Fig. 38. — Flower-buds of Pottawattamie plum, Prunus angustifolia. 



The central bud of each group is a leaf-bud. 

 Fig. 39. — Fruiting branch of European plum, Prunus domestica. 



B young wood. A wood of preceding year. iS fruit spurs. 

 Fig. 40. — Fruiting branch of Morello cherry, Prunus Cerasus. B 



young wood. A wood of preceding year. F clusters of fruit-buds. 

 Fig. 41. — Leaf-buds of the apple. 

 Fig. 42. — Fruit-bud of apple (F) . All are reduced one-half. 



readily distinguished from leaf-buds, by location and 

 appearance, the same season in which they are formed, 

 which enables the fruit-grower to anticipate his crop. 

 In the peach and apricot, and in many varieties of 



