V^EGETABLE STRUCTURE. 
91 
Petals ; and therefore this Coat is white. The termination of each of thefe 
pairs of Fibres or Threads, which are inclofed in the white Membrane, is 
in a globule of an oval form : the two are placed near one another withia 
the common Membrane; and thence the Anthera is double. In each 
globule of the Farina there is a minute portion of the Flefhy fubftance turn- 
ed round upon itfelf, the end being too weak to pierce the fhell of the 
globule. Thefs are the original Plantula? Seminales, which being covered 
by the waxey matter obtained from the Nedaria, and afterwards lodged 
in the Seeds, grow into perfedt Plants. 
CHAP. XXIV. 
Of the Course and Structure of the Pyra- 
midal Clusters. 
'“p'HE Clufters of Velfcls which have been defcribed, as having their 
place within the Flefhy Subhance in every part of the Plant, come 
next to be examined. Tho’ they are in fome degree immerfed in it, 
they are no abfolute part of it : they are a diflindl fyftem ; and they con- 
fift of certain arrangements of colour’d Vetfels covered and feparated by 
white and pellucid ones. We have feen thefe in the various fedlions of 
the Plant, whether we cut the Fibre, the body of the Root, or the 
parts above the furfacc. They are not peculiar to the Flower Stalks, for 
we find them alfo in thofe of the Leaves : therefore they are not deftined 
to become organs of frudlification ; but are nutricious VelTels only : and 
they are univerfal in the Plant. 
It is in the body of the Root we are to look for their origin ; and there 
we find them produced from the coloured Vefiels of the Flefhy Sub- 
fiance. 
In certain places thefe form a kind of knots. See Plate VI. Fig. 70, 
Letter C. One of thefe, feparated and more enlarged, is alfo reprefented 
at Plate VI. Fig. 82. From thefe knots, 82, run little Fibrils, b, which 
are fo many real Veffels, and in which we can fee in the frefli Plant a 
coloured Fluid : thefe, at a fmall difiance, form new knots, Fig. 82, r, 
from whence proceed the feveral coloured Vefi'eh of thefe Clufiers, Fig. 82, 
d d d-, and from their own fides are produced, in the fame manner, thofe 
pellucid Veffels which furround them, Fig. 82, e e e. At 83 is repre- 
N 2 fented 
