56 VEGETABLE STRUCTURE. 
is very difficultly diflinguiffiable in thefe longitudinal fedtions of the Root 
itfelf. Within this part, in the fpllt Crown, appears a portion of the 
fleffiy Subftance, but not the whole, 22 d. The principal part of this 
fublbance makes the vault or arch by which it returns upon itfelf, and 
makes the entire communication round the Root ; but a procefs of it rifes 
in this Crown as a Bliftcr ; juft as in the origin of the Shoot itfelf j and is 
continued into the Germ or Bud upon the fummit. There it does not re- 
turn into itfelf entirely, or form an arch of the whole ; but a part is again 
fent off, and terminates like the outer fubftances, in many threads, which 
end in the future Filaments. Within this is a green line, which is a part 
of the conic Cluflers, f; and finally a Pith is'raifed under this Blider as 
under the others, and this extending itfelf in length, terminates alfo in the 
rudiments of the Seed \’effels, 22, g. Thus is the Bud of Black Hellebore 
formed ; ar,d this as foon a- formed, is defended by many Scales feparated 
from the three outward coverings. This being underdood, the formation 
of a Bud at the head, or proper crown of the Root, is known, for it is 
the lame with that of the Crown in this. 
We fee of vvliat parts the Root is compofed ; and we are now to exa- 
mine the entire Plant. 
CHAP. XIII. 
The Construction of the Entire Plant. 
'' H E rational courfe will be, fird to confirm, by more obfervations, 
what and how many are the condituent parts of a Stalk, as well as a 
Root, and Fibre, by tranfverfe feflions j then to feparate thefe parts one 
from another by maceration ; and thus enquire into their drudlure : and 
finally, by longitudinal fedtions of the fredi Plant, to fee what are their 
connedtions, and how one is united to another. 
The fird difeovery we make by the tranfverfe fedlions of the Stalk, the 
Fibre, and the body of the Root, is, that the condituent parts are the fame 
in all of them in number and condrudion : differing only in proportion. 
And this is a difeovery of no fmall moment. We find by this, that Vege- 
tables have a compofition peculiar to them as Vegetables ; and univerfal 
among them : that it is as Plants they confid of a certain number of con- 
dituent parts i and that, as among the feveral portions of a Plant, Stalk, 
Root:, 
