^ 



-th 



-\ 



t 



'^eold 



«tii 



tri- 



HI 



'f th 





~rf 



^uds 



5:f 



' f rallied 

 rdsto 



a 



t 



aiii 



*\ 



he c 



nieet 



ot 



•■ound, if 

 ^0 nour'il 



dtake 



a root ill 



obes to 



-rth; but the 



icdiatelyintlie 

 ■eparcd for it." 



adapted fecre- 

 6les or fioral- 

 ed for it after- 

 a iiourifhedin 



:om 



the ve^e- 



ual herbs d 

 leaf; butifit 

 parent-leaf'^ 



, the roots of 



and pro* 



f 



to eac 



h y^ 



rom 



n 



> 



w 



thee 

 here 



» 



it IS 



siufon^^^!' 



asi^ 



the^' 



IIlS) 



Vltl5 



) 



Sect. IX. 2. 6. 



SEEDS, BUDS, BULBS. 



^55 



bleed 



the birch, betuk ; and the maple, acer; 



y wound, as treated of in Se6l. Ill 



hlcK at that feafo 



do 



6. At this time the buds begin to fwell, and to fhoot roots 



trds from their caudexes into the earth ; the mtertexture of thefe 



dexes conftitutes a new bark 



the old one, confining of 



d abforbents, as defcribed in Sed:. I 



P 



forth a leaf, which is a refpiratory organ, and 



Each bud th 

 refembles 



many refpecls the lungs of animals, as defcribed in Se^. IV. but dif- 

 fers from them in this circumftance, that the leaf requn'es light as, 

 well as air for the purpofe of perfed refpiration, as will be treated of 



in the Seilion on Light* 



Each embryon of a leaf-bud is thus furnifhed with its proper ref- 

 piratory organ ; and as many new embryons were generated during, 

 the fummer in each leaf-bud, they now pullulate in fucceffion ; each 

 of which has like the firft its appropriate leaf, which, as they fuc- 

 ceffively advance, compofe the annual flioots or fprigs of trees ; which 

 in fome plants become of great length, as in vines, and willows, con- 

 Hence if the firft fet of 

 frofts, as frequently happens to afli- 



)nica ; or by 

 t-trees ; and 



fining of twenty or thirty new leaves. 



be deflroyed by 



fraxinus, and to the weeping willow, falix babyl 



depredation of infedl 



hich oft 



inj 



fr 



perpetually occurs in this climate to the fpindle-tree, euonymus ; and; 

 iii Italy to the white mulberry-tree, which has its firft leaves plucked) 

 off for the food of filk-worms, and to the tea-tree in China ; a fecond. 

 fet of leaves fuccecds, which, belong to the fecond embryons of the- 



fame bud. 



But when the bra6l,es or floral-leaves are deflroyed by infe6ls, as; 



fometimes happens to currant-trees, and apple-trees ;. the fruit in the- 

 pericap does not perifli, like the firft embryon of the leaf-bud above 

 mentioned ; becaufe it is ftill fupplied by the abforbent fy flem of the- 

 caudex and roots of the flower-bud, which compofe a part of the bark,, 

 aad pafs into the g^round ; but the fruit becomes four, andlefs per- 



X2, 



ft 61 



' 

 ' 



