3 54 



SEEDS, BUDS, BULBS. 



Sect.' IX. 2. 5 



\ * 



the afcendlng caiidex, or uterus, of the new bud, while the defcead- 

 mg caudex of it is fecreted from the various parts of the older bark 

 in its vicinity. 



Something fimilar to this mode of the produdion of the buds of 



d not efcaped the ingenious Mr. Bradley, who afle 



buds have their firfi: rife in th 



pith 



they 



there framed 



d 



furniihed with every part of vegetation, and forced forwards to m 



he air through the tender bark 



they were 



ft rained by vefl 



d would drop 



h 



C) 



d, if 



hich ferve as roots to nouri(h 



them ; and thus as a feed takes root in the earth, a bud tak 



th 



but with this difFe 



that 



feed has lobes to fupply 



it with nourifliment, till it can fele(Sl: juices from the earth ; but th 

 bud has no occafion for lobes, becaufe it takes root immediately in th 

 body of the tree, where the proper juices are already prepared for it.' 



Difcourfes on Growth of Plant 



P-56 



5. As the feed was nourished in the pericarp by an adapted fecre 

 tion from the vegetable blood oxygenated in the brakes or floral 

 leaves ; and as a refervoir of nutriment was alfo prepared for it after 



rds in the feed-lobes and fru 



fo the bud is at firfl nourifhed 



J 



the bofom of its parent-leaf by an adapted fecretion from the veg 



table blood 



d continues to be fo 



fhed in annual herb 



d 



J 



evergreen trees, till it protrudes and expands its own leaf; but if it 

 be a bud of a deciduous plant, which mufl lofe its parent-leaf in 

 winter, a refervoir of nutriment is prepared for it in the roots of 

 fome plants, as in carrots, tnrneps, liquorice, fern ; and probably 

 both in the roots and alburnum, or fap-wood, of trees. 



Thus in the fpring the umbilical vefTels belonging to each indivi- 



dual biennial plant, or bud of a tree, abforb moifture from the earth, 

 and propel it upwards through the roots and alburnum, where it is 

 mixed with a nutritious material, and carried upwards in fome trees 

 with a power equal to the preffure of the atmofphere, as in the vine, 



vitis ; 



Secl 



vitis 



bleed 



6. 



w a rd 



ries, 

 alfo I 



fersi 



,vcll 

 th 



E: 



\ 



in 



pirat 



the 



of \^ 

 cell- 

 mi 



lea 

 tre( 



th 



c 



per 



iiil 

 off 



fet 

 {an 



fo 



t 



ca 



mlf 



t 



