go Of the Vegtation Book I. 
44, $. Where the fame Aerial Vefels are Fewer,or more Contracted, 
or fheathed in a Thicker and Clofer Barque; the Root is fmooth, and 
747,8. le Ramified, as in Afparagus, Peony, Dandelion, But whe 
Numerous, theathed in a Thinner Barge, Smaller, or more Dilated; 
Tab, 2,87. the Root is more Ramified, or more Stringy, as in Columbine, Clary, 
Beet, Nicotian, For being, as is faid, by thefe means, more fequent 
to the Attraction of the Aer; approaching (till nearer the circumfe- 
rence of the Barque, they at laft ftrike through it, into the Earth. 
And the Parenchymous Fibres being wrapped about them, and the 
(4) Purses, Succiferons Vefels knit to them by thofe Fibres; (a) therefore they 
$. 12, never break forth naked, but always invefted with fome quantity of 
thefe Parts as their Barque : where by, whatever Conftitutive Part is 
in the main Body of the Root, the fame is alfo in every Branch or 
String. 
45. $. From the fame Expanfion and Pliability of the Aer-Vepels, 
the Root oftentimes putteth forth Root-Buds 5 which gradually fhoot 
up and become fo many Trunks. In the Formation of which Buds, 
they are pliable and receffive all kinds of ways; being not only in- 
vited Outward, toward the Circumference of the Root, as in Root- 
firings, but alfo fpread more Abroad every way, fo as to make a Roof- 
Bud : Where as in the faid Root-frings ; they are always more Con- 
tracted. Which, in refpeét of the Difpofition of the Parts, is the 
principal difference betwixt the Root and the Trunk , as hath been 
faid. (5) Hence, thofe Roots, chiefly, have Root-Buds, which have 
the fmalleft der-Vefels 5 (c) thele, as is faid, being the molt pliable 
and Expanfive. 
46. $. But becaufe the expanfiveneß of the Vefels, dependeth alfo, 
in part, upon the Fewnefs of their Braces; therefore the faid Buds 
fhoot forth differently, in divers Roots, Where the Braces are fewer, 
the Buds fhoot forth beyond the Circumference of the Root, as in Je- 
rufalem Artichoke; where mote clofe, as in Potato's, the Buds lie 
alittle abfconded beneath it; the 4er-Veffels being here, by their 
Braces, fomewhat checked and curbed in, while the ‘Banque continueth 
to [well into a fuller Growth, 
47: $. If the Aer-Veffels are all along more equally fized, the 
Root is fo alfo, or Cylindrical; as are thole of Eryngo, Horfi-Radifh, 
Marfimallow, Liquirifo, Sec. _ But if unequal, growing fill wider to- 
wards the bottom of the Roots then the Roof is unequal alfo: But 
groweth, asis obfervable, quite contrarily to the Aer-Vefels ; not 
Greater, as They do; but ftill fmaller, or pyrämidally ; as in Fenil, 
Borage, Nettle, Patience, Thorn-Apple, Exc. isapparent. For the Aer- 
Veffels peing conliderably wider about the bottome of thefe Roots they 
therecontein a more Copious Ferment : Whereby the Sap is there 
alfo more volatilized, and plentifilly advanced to the Upper Parts. 
Withal, thus receiving into themfelves, and fo trafmitting to the up- 
y Parts, a more plentiful Vapour, they hereby rob the Partnckymahı 
arts of their Aliment, and fò ftint them in their Growth. 
How Roots 48. $. FROM THE different Proportions and Situation of the 
are diffently Parts, the Motions of Roots are alfo various. For where the Are-Voffels 
Mer a are fpread abroad and invelted with a thinner Barque; the Root runs 
“or lies Level,as in the level-Roots of Primrofe, Bifhops-mecd, Anemone, Xc. 
may 
