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buds at the ends of twigs, as in the cherry, oak, etc. The 

 tip of the twig is enlarged ; the wood zone is thin, but there 

 is a corresponding Hgnification of the great mass of pith, 

 thus giving stabihty to the end of the shoot and furnishing a 

 reservoir for a large supply of starch from which the several 



buds can draw liberally when they need this nourishment. ' 



The maples offer a case of buds being in pairs, and there- 

 fore there arc three very near to the extremity of the twig — the 

 terminal or central one and two lateral buds. In the hard 

 rmple {Acer sacc/iarum,M'dVsh,)thG disposition of the starch sug- 

 gests a thimble or a finger of a glove, it forming a narrow layer, 

 in the pith that lies next to the thin zone of wood- In the soft 

 maple {Acer saccharimini) the thimble has no tip, but is like a 

 *' glove finger '' that has been cut off near the end. This may 

 arise from the fact that the lateral buds are not so close to the 

 terminal one. 



The ashes are like the oaks in having a large amount of 

 starch near the terminal buds. On the other hand, the catalpa 

 resembles the soft maple in having a ** thimble. 



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In the locust we have an illustration of a poorly formed ter- 

 minal bud, and the starch distribution is accordingly peculiar. 

 The treatment of such cases comes more properly under the 

 head of lateral buds, but they form a transition between the 

 terminal and lateral. The starch of the upper two inches of the 

 twig is distributed quite equally between the two buds either of 

 which might receive it all. In the basswood there is much 

 the same condition of things, and in the hackberry also. 



Among shrubs the lilac is a striking example of copious 

 starch-storing at the tips of the branches, but in this case it 

 should be remembered that two large buds are located ter- 

 minally and two shoots must be provided for instead of one. 

 Figure 5 shows the quite constant condition of the shrub in 

 winter, and as this plant has been studied throughout the year 

 it will be treated of elsewhere. 



The garden cherries have terminal clusters of buds as in the 

 oak, only larger, but the amount of starch is small. The same 

 is true of the wild cherries. However, a lar^^e amount of ^jum 

 or mucilage is present, and this doubtless serves the same 

 purpose as starch in the economy of the plant. 



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