""'^•IX. 



2. 



I 







01! 



Ut 



"^if^fiitn. 



' 3 ^eaf.bui i 

 ^r leaves, 



h 



cc 





3 



lit 



and 

 termi. 



P^a"t the leaf, 

 healthy trees- 



'Jg^ted, as tlie 



Hy fupplied, or 



of flowcr-bods 

 ic birch-tree in 

 to the top of a 



J. Vol. I. 



Ing apple-trees 

 old; while the 



or three years 



) 



It on 



ly at their 



branch of a vi- 

 lli flower, 



d 



aii 



V 



id ^^ 



metap 



'ah]ti 



hori 



^roduc^JD 



I-*-' 



3> 



h 



w 



hicb f^^.^ 



afes 



r VI 



IiicrC'i 



O 



■^''^i;> 



Sect. IX. 2. 8. 



SEEDS, BUDS, BULBS. 



^S7 



fes the flower-buds, and thus gives a lefs 



appearance 



to the tree. . i r r ^ 



The generation of buds feems to require a lefs perfed apparatus 



than the'^'ceneration of feeds ; as that of buds always precedes that of 

 feeds, both in trees and herbs ; and becaufe the caterpillar is convert- 

 ed in'to a butterfly folely for the purpofe of feminal propagation ; 

 whereas the polypus can only propagate laterally, or by buds. Hence 

 the age of the plant is another neceflary circumflance to the produc- 



;, as appears in tulips, and hyacinths. 



n of flowers, fruit, and feeds, as i 



well as in apple-trees and pear-trees. 



8. About midfummer the new buds are formed 



but it is believed 



by fome of the L 



fchool, that thefe buds may in their early 



flate be either converted into flower-buds or leaf-buds, according to 

 the vigour of the vegetating branch. Thus if the upper part of a 

 branch be cut away, the buds near the extremity of the remaining 

 ftem, havin^^ a greater proportional fupply of nutriment, and pofleiT- 



facility of producing their new caudexes along the bark, 

 will become leaf-buds ; which might otherwife have been flower- 



to 



& 



bud 



d on 



the 



y 



if a vigorous branch of a wa 



which was expelled to bear only leaf- buds, be bent down to the ho 

 rizon or lower, it will bear flower-buds with weaker leaf- buds, as i 

 much exemplified by Mr. Hitt in his Treatife on Fruit Trees. 



The theory of this curious vegetable fad has been efteemed difli 

 cult, but receives great light from the foregoing account of the indi 

 viduality of buds. Both the flower-buds and leaf-buds die in the au 

 tumn ; but the leaf-buds, as they advance, produce during the fum- 

 mer other leaf- buds or flower-buds in the axilla of every leaf ; which 

 new buds require new caudexes extending down the bark, and thus 

 thicken as well as elongate the branch; whereas the flower-buds 



^ 



d th 



req 



{lied. their feed, when they perilh in th 



no place on the bark for new caudexes. 



a branch is lopped off, the buds near the extremity of the remain 



Hence when the fummit of 



i3 



1 



flem 



