t 



394 



PRO DUCTIO N 



Sect. XV. 2. r 



greater or lefa 



words vigorous or weak may properly exprefs the 

 health of vegetables in both thefe fituations. 



The reader will pleafe to obferve, that in the Botanic Garden we 

 have called the bark of trees an intertexture of the roots of each in- 

 dividual bud ; but that this is not accurate language, aS the filaments, 

 which conflitute the bark, are each of them the caudex of a bud, or 

 central part of it ; which has a leaf at its upper extremity, and a ra- 



dicle at its low 



And that each new caudex, or bark filament 



o 



aerated along the whole trunk of the tree by the caudex or bark 

 filament beneath it ; as appears in thofe fruit-trees where one, or two, 

 or three fcions have been ingrafted on each other, as mentioned in 

 Se6l.VII. 1.7. for in thefe compound trees, when a bud arifes from 



any part of the trunk 



feen to refembl 



part of the flock 



and not to relemble the new grafted fcion above it. We finally fup- 

 pofe, that this whole long caudex of a new bud is generally gencrat- 



■ 



ed all at the fame time by the fympathetic action of the parts of 

 the parent caudex along with the bud in the bofom of the leaf of 

 that parent caudex ; and that it is not gradually produced, as we firfl: 

 fuppofed, by the elongation of the roots of each budlet in the bofom 

 of the leaves. 



The following meth'ods will contribute to prevent the young buds 

 from Co readily acquiring new caudexes on the trunk of the tree ; and 

 will 'therefore retard the. generation of leaf- buds, and confequently 



I 



ffifl th 



CD 



fruit-bucls : and (hould be 



ted about 



Midfummer, or foon after, as at that time the new budj^are formed. 

 i . 'The fir Ji method confifis in bending the viviparous branches to the 

 horizon, which converts them into oviparous ones, for by the curvature 

 of fuch branches the bark will be comprefled on the under fide, and 

 extended on the upper fide of the curve, and its veffels on both fides 

 will be coritra£led in their diameters, and thus the difficulty of pro- 

 ducing new caudexes for the generation of embryon leaf-buds will 



6 



be 



