Sect. I 



O F 



BUDS 





dexes of the numerous buds, as they pafs down to fhoot their radicle 

 into the earth ; and that the foHd timber of a tree ceafes to be ahve 

 and is then only of fervice to fupport the numerous family of buds ii 

 the air above the herbaceous vegetables in their vicinity. 



A bud of a tree therefore, like a vegetable arifing from a feed 



cle or root-fibres 



fifts of three parts ; the plumula or leaf, the rad 



o 



eth 



hich is 



d th 



and the part which joins thefe two t( 



caudex by Linneus when applied to intire plants ; and may, therefore, 



be termed caudex gemmse when applied to buds. 



In herbaceous plants the caudex is generally a broad flat circular 

 plate, from which the leaf-ftem afcends into the air, and the radicles 



into the earth. Thus the caudex of a plant of 



fibres defcend 



w 



between the ftem 



nd th 



d 



at the bafis of 



a leaf, and occafionally produces new (lems and new radl 

 ;s. Thus the caudex of the tulip lies beneath the p 



from its (ides, 



r 



cipal bulb, and generates new fmaller bulbs in the bofom of each 

 bulb- leaf, befides one principal or central bulb ; the caudex of orchis, 

 and of lome ranunculufes, lies above their bulbous roots ; whereas the 

 caudexes of the buds of trees conftitute the longitudinal filaments of 



the bark, reaching from the plumula or ape 

 branch to the bafe of it, or its root-fibres beneath the fo 

 Nor is this elongation of the caudexes of the buds of 



f the bud on 



thfc 



o 



us to what happens to fome herbaceous plants, as in wheat ; whei 

 crrain is buried two or three inches beneath the foil, an elonga 



f the caudex occurs almoft up to the furface, where anoth 



I 



let 



ht ftem 



m 



of fibrous roots are protruded, and the upri^ 



The fame happens to tulip-roots when planted too deep in the earth 



as 1 have witnefled, and I fuppofe to thofe of many other vege 



tables. 



V 



This 



d 



f the buds of 



fcribed, but alfo afcends from each bud 



B 2 



defcends as above de 



it above it ; as on th 



Ion 



& 



3 



