Book u. of Roots. 25 
(NAAA 
Of the PITH. 
ITHIN the Liguons Part Iyeth the Pith. This 
Part is not common to all Roots, for fome have 
none, as Nicotian, Srtamonium, and others. Yet 
many which have none, or but little, throughout 
all their lower parts, have one fair enough about 
their tops, as Mallow, Bowrage, Dandelion, and Tabé 
the like. See the Roots. And in many others there 2% % 
are Parenchymous Parts, of the fame fubftantial nature with the Pj A 
diftributed betwixt the feveral Rings of Pefels, and every where vi- 
fible, from the top to the bottom, as in Beet, Fenil, &c, Tab. 8, 
2. $. The Size of the Pith is varied by many Degrees, eafily rec- 
koned an Hundred; in Fexil, Dandelion, Afparagus, but fmall ; in 
Horfe-Radifh, Valerian, Biftort, The Shape hereof, in the 
lower parts of moft Roots, is Pyramidal 3 but at the tops, Various, ac- 
cording to the different Diftribution of the Vefels, asin Carrot, Hyper- Tab, 6, 
bolick, in Parfley, Oval; as. appeareth, in cutting the Roots lenght- 
Ways. 
3. $. The Pith, for the moft part,efpecially in Trees,is a Simple Body : 
but fometimes, it is, asthe Barqwe, compounded ; fome certain number 
Of succiferons Vefels being mixed herewith 3 as in Jerufalem Artichoke, 
e E: b. 6, A 
Horfe-Radifh, &c. upon a traverfe cut, by a ftri& view, may be en 
difcerned. Their Pofition is fometimes Confufed, as in a Carrot ; and 
fometimes Regular, as in Parfley appearing, by the traverfe cut, in Tab. 6. 
Rings, and in cutting by the length, in Arches. And fometimes the 
Pith is hollows as in the Level-Roots of Bifhops-Weed: thefe. Roots 
being made out of the Stalk, as in the First Chapter hath been thew- 5.15 
ed, how, 
4. $. As all the other Partsof the Root, are originated from the 
Seed 5 fo, fometimes, is the Pith it I But fometimes, it hath its 
More immediate Derivation from the Barque. Hence it is, that many 
Roots, which have no Pith in their lower parts, have one at their 
top, as Columbine, Lovage, Ec. For the Parenchymous Parts of the 7,5, 4, 
Barque being, by degrees, diftributed into Diametral Portions, run- 
Ding betwixt thofe of the Lignous Body, and at length, meeting and 
uniting in the Centre, they thus conflitute the Pith. In the fame 
manner, at the top of fome Roots, the Pith is either made or augmen- 
ted, out of the Parenehymous Rings above deferibed; thele being 
gradually diftributed to, and embodied in the Centre 3 asin Fenil, and 
fome other Roots, their lower and upper parts compared together, 
may be feen. Even asin Animals, one Part, as the Dura Mater, is 
the original of divers others, 
7 5. $ 
E415. 
