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Show Tbe Anatomy Book I. the Pith is not only of the fame fubftantial nature, and by the Tnfertions doth communicate with the Barques and that it is alfo aug‘mented by it; whichis true of the Pith of all Roots 5 but is ‘moreover, by mediation ofthe faid Infertions, wholly originated from it ; that isto fay, from the ParenchymousPart thereof. Thevarious appea rances of the Infertions and Pith from the filamentous Parts to the 10.2. fr 9 top of the Root, fee in Tab. 2. The Pores of the Ligwons Body, as it {tands entire in the faid filamentous Parts, are belt {een when they have lain bya night to dry,after cutting. oe 18. §. A farther evidence hereof are the Proportions betwixt the Cortical Body and Pith, For as about the inferiourParts of the R oot, where the Pith is {mall, the Cortical Bodyis proportionably great ; fo about the top, wherethe Pithis enlarged, the Cortical Body (now more properly becoming a Barque.) groweth eee lefs, ce. becaufe the Infertions do {till more and more enlarge the Pith. Likewife the peculiar frame of fome Roots, wherein befides the Pith, the Lignous Body being divided into two or more Rings, thereare alfo one or more thick Rizgs, ofa white and fott fubftance,whichftand betwixt them5 andare nothing elfe but the Ixfertions of the Cortical Body collected intothe faid Rings 5 but, towards the top of the Root, being inferted Tab.2.f.8. again,thus make a large and ample Pith 5 asin older Fennel-Roots,thole ofBeet, Turnep, and fome other Herbs, is feen. 19. §. ee The Pores of the Pith, as thofe of the Cortical Body, are Cuticle, Which tranfient sap, tho igh it thus becomes fine, yet is not fimple ; but a mixture of Particles, both in refpex ofthofe origina in the Root, andamong{t themfelves, fomew A e being lodg’d in the Cortical Body moderately laxe, and cular form 5 theeffect will be an eafie Fermentation. The Sap fermens ting, a feparation of Parts will follow ; fome whe reof will be impa@ted tothe Circumference of the Cortical Body, whence the Cuticle be comes a Skin; as we fee in the growing of the Coats of Cheefes. the Skin over divers Liquors, and the like. Whereupon of the pafling into the Cortical Body, through this, as through a Manica Sap Hip- pocratis, is {till more finelyfiltred. Wich which Sap, the Cortical Body beingdilatedas far as its Tone, without a {olution of Continn ity, will bears and the fupply ofthe sap ftill renew'd: the pureft part, as moft aptand ready, recedes, with its due Tindures, from the faid Cortical Body, to all the parts of the Ligvous; both thofe mixed with the Barque, and thofe lying within it. Which Ligno wile fuper-inducing its own proper T7dures into the now to its higheft preparaton wrought up, and becomes (a of that of an Animal) the Vegetative Ros or Cambium : f {tance with the {aid Lignous Body. The remainder, thoughno tunite to it, yet tin@ur’d therein, thus retreats, that is, by the continual appulfe of the Sap, is in part carried off into the Cortical By dy back Body. that whereas before, the Cortical Body was onlyrelaxed in its Parts,an d fo dilated 5, ’tisnow increas’d in real quantity or numberof parts, and fo is truly nourifh’d. And the Cortical Bodybeing faturate with fo ‘ 20. §. : ; The Proportions of the Pith, are various; in Trees, but fmall ; in Herbs, generally, veryfairs in fome making by far thegreateft part of the Root; asin a Turnep: By reafon of the wide circumference whereof, and fo the finer Concoétion and Aflimilation of its Sap 5 that Part which in moft old Trwvksisadry and harfh Pith, here proves atender, pleafant meat. "p f 21. g. Inthe Roots of very many Plants, as Turneps, Ca Z the Lignous Body, befides its main utmoft Ring, hath divers ofits ofculated Fibres difperfed throughout the Bodyof the Pith; fometimes all alike, and fometimes more efpecially in, or near, its Center; which fzbres, as they run towards the top of the Root, ftill declining the er, at la{t collaterally ftrike into its Circumference; either all of or fome few, keeping the Center ftill. Ofthete principally,the ent part of the Ligzous Body of the Trunk is often originated. 2. §. Some ofthefe Pith-Fibres, although theyare fo exceeding flender, yet in fome Roots, as in that of Flowerde liz, they are vifibly concave, each of them, in their feveral Cavities alfo embofoming a very {mall Pith; the fight whereof, the Root being cut traverfe, and Jaid ina Windowfor adayor two todry, may without Glafes be obtain’d. And this is the general account of the Root 3 thedeclaration of the mannerofits growth, with the uféand fervice of its feveral Parts, we hall next endeavour. 23. §. I SAY THEN, That the Radicle being impregnate, and An Ac count 4 lot into the Moulds, the contiguous moilture, by the Cortical f the Body, srowth of of“Plants. extended both by the breadth andlength of the Root, much alike 3 yet are they more or lefs of a greater fize than thole of the Cortical t el Book L ing a Body laxeand Sponey, is eafily admitted: Yet notall. indif rately, but that which is morea apted to pafs thro the furrounding Cuticl again, the sap whereof it nowtinctures into good Aliment, So much ofthis Vital sap as fervesit felf; and the fecond Remainders difcharged thence to the Shin ; this alfo is nourifh’d and augmented therewith. So that asin an Avimal Body there is noinftau ration or growth of Parts made by the Blond only, but the Nervous Spirit is al- fo thereunto affiftants fo is it here: the sap prepared in the Cortical Body, is.as the Bloud,andthat part thereof prepared by the Lignous, is as the Nervous Spirit ; which partly becoming Nutriment to it felf andpartly being difcharged back intothe Cortical Body, and diffafing its Tincture through the Sap there, that to the faid Cortical Body and Skin, becomes alfo true Nutriment, and fo theyall now grow. 24. §. In which growth, a proportion in length andbreadth is re quifite: which being rated by the benefit of the Plant, both for firm {tanding and fufficient Sap, muft therefore principally be in length, And becaufe it is thus requifite, therefore by the conftit n of one ofits Parts, /?. the Lignous Body, it is alfo made neceffary . Pores hereof, inthat they are Pores will pri and that wayasits Sap moves, the fame waywill Parts alfo proceed 3 /c. by its For the all extended by its length, the< according to the frameand fite ofthe faid length. ‘ And the Lignous Ba: is bya priority caufal) moving in length it felf; the C therewith. For that whichis nourifh’d, is extended: is extended, is mov’d : that th The Lignous Body then being firl ti Vic rite andfo becomes and carries in it the Principle ofall Vegetative motion in the Cortical ; and fo they both move in le ngth, |
