
Book IL of Roots. 71 
of the Root, do oftentimes, as tho, emit a Liquour. They are.alfo 
Braced 5 and many of them run in diftinét Threds or Portions, collate 
rally together. 
5. §. The Aer Veffels 1 fo call, becaufe they contain no Liquor, but 
an Aery Vapour. They are, more or lef, vifible in all Roots. They may 
be diftinguithed, to the bare Eye, fromthe Parenchymous Parts, by their 
Whiter @grface; and their ftanding more prominent, wheras thofe 
thrink below the tranfverfe level of the Root, upon drying. They are 
frequently Conjugated divers of them together , fometimes fewer, and Tab. 10; 
for the moft part fingle, asin A/paragus ; fometimes many, as in Horf: & 15. 
Radio. And their Conjugations are alfo Braced, as the Threds of the 
Succiférous Veffels. But they are no where Inofculated : nor Twifted 
one aboutanother 5 but only Tangent or Collateral. Neither are they 
Ramified, the greater into eG she are all diftinétly continued, as 
the Nerves in Avimals, from.one end of the Root to the other. 
6. §. Their Braces, as thofe of the Succiferous Veffels, are alfo of 
various number: in Ferufalem Artichoke, Cumfry, Scorzonera, more rare 5 
in Borage, Burnet, more frequent 5 as by {tripping off the Bargue of 
fuch Roots, where it is eafily {eparable, may be feen. And they often Tab. 6. 
vary in the fame Root ; fo in Borage, Scorzonera, &c. they are more 
frequent in the Centre, and next the Barque, than in the Intermediate 
{pace, as by {plitting thofe Roots down the middle doth appear. They 
alfo vary from thofe of the succiferous Veffels 5 ‘thote being ufually more 
frequent, as in Jerufalem Artichoke, than thefe of the Aerial. é 
7.§. Betwixt thefe Braced Aer-Veféls, and the ‘reft, which make 
the true Wood, run the Parenchymous Parts above defcribed 3 as they Zab. 6. 
do betwixt the succiferous in the Barque: and fo make up two Pieces 
of Net Work, wherof one is the filling up of the other. at 
8. §. The Pofition ofboth thefe Kinds of Veféls, is Various. The 
Succiferous or Lignous ,are fometimes pofited in diametral lines or porti- x 
ois 5 as in the Vive, and moft Trees. Sometimes, oppofitely to the oan he 
Aerial, asin Beet 5 each Ring herein being double, and made both of Lab. 8. 
Sap-and Aer-Veffels. 
9. §. In Nettle the Pofition is very peculiar, from what it is in the Typ, §, 
Roots of other Herbs 5 being curiously mixed 5 the succiferous running 
crofs the Aerial, in feveral, viz. Five, Six, Seven, or more Rings. 
In Bryony the feveral Conjugations of the Aerial, are diftin@ly fur- 
rounded with the Succiferous. In Patience, the Succiferous are difpoted, 24° 7- 
befides Rays, into many fmall Rings, of different Sizes, {prinkled up 
and down, and not, as inother Roots having one common Centre $ 
within divers whereof, the Aer-Vefféls are included : efpecially within 
thofe which are drawn, not into Rigs, but, as it were, ito little 
ftragling Hedges. 
10. $. That alfo of the Aer-Vefels, is Various and Elegant: efpe- 
cially in the upper part of the Root. In Avmi, Lilinin-non-bulbofon, 
they make a Ring, In thefé, a Prick’d-Ring; in Peony, aRing of 
Rays 3 in Valerian, aRing of Pricks and Rays. In others, they make Tb: 7,85 9: 
not Rings, but longer Rays, extended either towards the Centre, 
as in Scorzenera 5 or meeting init, as in Columbine. In the Common 
Dock, they {tand more in fingle Rays: in the other Species of Decks, 
both in Rays, and collateral Conjugations between, 

Tab. 65 
II. §; 



































