136 VEGETABLE STRUCTURE. 
forms VelTels: hence arlfe the Conic Cliifters, and afterwards the Pith. 
At the fame time fome part of their Juice is, by the fame means, forced 
alfo outwards; and this, hardening upon its furface, forms alfo other Vef- 
fels, which conditnte firfl the Vafcular Series, and then the Blea and Barks. 
While thefe parts are all very thin, and before they are well vifible, 
Tubercles rife on the furface of the original Ring, which is now become 
the Flefli of the head of the Root ; and thefe extend themfelves by de- 
grees to Fibres; and upwards, under the covert of feveral Films made of 
the continuations of the two Rinds, rifes the Receptacle of the future 
Flower. This Receptacle is formed of the fpungy parts of the Conic Cluf- 
ters, and is covered with a light coat of Flefli : not that the whole Flefli 
rifes in that form ; ’tis only a part of its furface ; and from and thro’ this 
Receptacle are continued the feveral parts of the Flower. 
In all this the courfe of Nature is the fame as in the Hellebore, only 
that in that Plant the Receptacle of the Flower is placed upon a Stalk ; 
and in this it rifes from the immediate head of the Root. A piece of the 
head of the Root magnified, with the F'ibrcs and Receptacle rifmg from 
it, is reprefented at F'ig. 9. And as the conflrudlion here is fo extremely 
plain, the whole will be underflood eafily. 
In this Figure, the circle or ellipfis, a, which is of a yellowifli colour, 
reprefents the Flefli or callous fubftance in the head of the Root. This 
was originally the elliptick Ring or Placenta in the Seed. It has formed, 
by extravafition, the Conic Cluflers, b b which are fcarcc vifible in this 
fcdion, and tlic Pith, c, which makes the inner Subflance. 
It has alfo formed the Vafcular Series d\ and the Blea, and two Rinds, 
€ fg, outward ; and while the Placenta, which has been fuppofed the Root, 
is but yet beginning to appear, this has fent down Fibres, h h b h, and 
upwards the Receptacle, crow’ncd with the Bud, k. 
Both the Bud and the Fibres have been originally produced of parts 
of the Fdefli, a, fent off from its furface ; and they yet hold communica- 
tion w’ith it ; for their Veflcls are continued into it, and are, indeed, no 
o her than certain elongations of a part of* its own V^clTels. The purpofc 
of the Fibres is to draw nourilliment from the earth, and to feed the Shell, 
a, f rom which they arife : and from the abundance of the nourifliment 
which this part receives from them, -it rifts- in a larger form at the Crown, 
giving origin to the Bud wdth its Receptacle, and clofe to it to 'the Placenta, /. 
'Fhe Fibres, which are continuations of the Flefli and-its coverings, are 
perfectly fuited to draw nourifhment ; and from this nourifliment is fed 
the r.fiiig Bwd; but it does not go crude thither: it is elaborated in the 
fliell 
