VEGETABLE STRUCTURE. 
87 
difpolition ; and fliall, without much difficulty, diftingulffi that It has been 
the original portion in the fyitem, producing not only its feveral Coats, but 
all the parts. 
Jn the body of the Root we fee this is a maiiy fuhflancc, forming 
th.e entire circumference of that body, and fending upwards portions from 
its outer furface, to form the Flefli of the Stalk, and downwards for the 
Fibres. This has been explained at large in the Anatomy of the Root, 
in Plates II. and III. V/e fee it very dilVi. < 5 Fy in a Plant thus managed, 
and cannot but obferve a vafl: difference between the ccurfe of this part 
and the others: the Coats of the Stalks and Fibres are plain continuations 
of the Coats of the body of the Root ; but the Fleffi of the Stalks and 
Fibres are not continuations of the Flei'h cf that body, but only produc- 
tions of it. This FlelF. thus becomes a part alfo of the entire Plant, round- 
ing the ends of the Fibres and their heads, in the fame manner round- 
ing the body of the Root, and in a procefs thence running up the Stalk, 
where it does not return upon itfelf, but when it has reached the Flower, 
divides, and forms the Filaments, 69, a tho’ not without the interme- 
diation of the Receptacle. 
There the feveral Veffels of the Flefli of the Plant lofe themfelves in 
the fpungy fubftance formed by the Coat of the Conic Clufters, and riling 
again from its upper furface, diverge into the Filaments. 
C H A P. XXIII. 
Of the Construction cf the Flesh, or Fleshy 
Substance. 
TX 7 E enter now upon the rnoff important examination in the Vegetable 
Anatomy: This is a part the mofi: effential to the Plant of all; in- 
deed, the only part which is effential 3 yet it has been hitherto the lead: 
underdood. 
The other parts of the Vegetable Strudfure, are one or other of them 
wanting in various Plants, or various Parts of Plants ; and we fee the fydein 
can exiff, and enjoy its fpecies of life without them : they, therefore, are 
not edential. But no Plant, nor any neceffiry part of a Plant, is ever 
found without this fubftance : therefore it is effential, and alone effential 
to the Vegetable Life. 
It 
