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Show EERI E en e whtech lies betwixt the Nerves, and as in Gentle womens Needle-warks, Lup, is nothing elfe, but the continuation of the Cortical Body, bymous part ofthe Barque from the Branch into it felf, asin is with a thick Leaf, may eafily be feen. The Fibers of the fneither {hoot out of the Brazch, or the Trunk, nor ftand in the Stalk, in an ever Line 5 but alwayes in an Avgular or Circular polture ; and ufually making either a , OF a Semi-Circle, or Ch ofa Circle 5 as in Cichory, Endive, age, &c. may be obferved. And if the L cafhave but one main Fi- that alfo is poftur'din a bowed or Lavar Figure 5 as in Mint and s. The ufual numberof thefe Va/cular Threds or Fibres is 3,5,00 7. §. The reafon of the faid Pofitions of the Fibers in the Stalk of eaf, is for its more Ered growth, and greater Strength: which, ie pofition ofthe faid Fibers in an evenI , andfo the Stalk as well as the Leaf, flats; muft needs have been defective 5 as n what we have faid of the Circumferential pofture of the Ligwous Body in the Trunk, we maybetter conceive. to. §. As likewife for the fecurity of its Sap: For bythis means is, that the feveral Fibers, andefpecially the main or middle Fiber the Leaf; together with a confiderable part of the Parenchyma, are difpofed of, as to jut out, not fromits upper, but its back, or neither Side. Whence the whole Leaf, reclining backward, becomes a Canopy to them, defending them‘ from thofe Injuries which from colder Blafts, or an hotter Sun, they might otherwife fuftain. peat eee eed So that by a mutual benefit, as Thefe give fuck to all the Leaf, fo that again proteion to Thefe. an. g. Thefe Fibers are likewife the immediate Vifible Caufe of the c hape of the Leaf. For if the nethermoft Fiber or Fibers which thence runs chiefly through the length of the Leaf)in the Stalk be in proion greater, the Leafis long 5 as in Exdive, Cichory, andothers: lof a more equal fize, it {preads rounder, as in lay, Doves-foot, lts foot, &c. Andalthough a Dock-Leaf be very long, whofe “ibers notwithftanding, as theyftand higher in the stalk, are difpofed into a Circle all of an equal fize ; yet herein one or more peculiar Eibres, ftanding, in ornear the Center, betwixt the reft, and running through the length of the Leaf, may be obferved. s In correfpondence alfo tothe fize and fhape of thefe Fibres, In that either they are very fmall, or if larger, yet they never make anentire Circle or Ring 5 but either halfofone, as in Borage, or at moft three parts of one, as in Mullen, may be feen. For if either they were fobig, as to contain » Or fo entire, as perfe@ly to include a Pith, the Energy of the Sap the faid Lignons Ring to fhoot forth on in that Pith, would caufe every fide, as it doth in the Root or Trunk: Bat the faid Fibers being Ring, but fo as to be Open 5 on that not figur'd into an entire hand therefore where open they cannot fhoot any thing dire€tly from themfelves, becaufe there they have nothing to fhoot; and the Sap having alfo a free vent through the faid opening, again{t that part therefore which is unto oppfite, it can have no force 5 andfo neither will they therefhoot forth on that hand; and {0 will they confequently, that wayonly, Se as oe es ae : the force of the ae : 12. §. is the Leafflat. eft. s ap dire&ts, which is only , on the right and . . £35 4. of Plants. 31 13. §. The feveral Fibers in the Stalk, are all Inofculated in the Leaf, with very many Sub-divifions. According as thefe Fibers are Inofculated near, or at, or fhoot diredly to the edge ofthe Leaf; is it Even, or Scallop’d. Where thefe Inofeulations are not made, there we have no Leaves, but only a company of Filame nts 5 as in Fenwel. 14. §. Tothe Formations of Leaves, the Fouldings immediately follow. And fometimes they have one Date, or are the contemporary works of Nuture; each Leaf obtaining its diftinét fhape, and proper pofture together; both being perfe@, not only inthe outer, but Central and minuteft Leaves, which are five hundre d times outer: both which in the Cautious opening of a Germe{maller than the 15. §. Nor is there greater Art inthe Forms, thann may be {een. in the Foulds or Poftures of Leaves 3 both anfwerably varyin g, as this or that way they may be moft agreeable. Of the Quincuncial pofture,fo amply inftanc'd in by the Learned Sir Thomas Brown, I ofthe thall omit to fpeak. Treat. Quincunx. Others there are, which thoughnotall fo univerf al, yet equally neceflary where theyare, giving two general advantages to the Leaves, Elegancy andSecurity, fe. in taking up, fo as their Forms will bear, the leaft room; and in being fo conveniently couch’d, of receiving protectionfrom other Parts, or of giving as to be capable it one to ano- ther 5 as for inftance, 16. §. Firft, There is the Bow-Lap, where the Leaves are all laid fomewhat convexly one over another, but not plaited ; being to the length, breadth and number of Leaves moft. agreeable ; as in the Buds of Pear-tree, Plum-tree, &c. But where the Leaves are not {fo thick fet, as to ftand in the Bow-Lap, there we have the Plicature, or the Flat-Lap 5 asin Rofe-Tree, Strawberry, Cinguefoyl, the Leaves being here plaited, andfo lying in half Burnet, &c. For their breadth, and divers of them thus alfo collaterally fet together; the thicknefs of them all, and half their breadth, are muchal ike dimenfions 5 by which they ftand more fecure within themfelves, and in better confort with other Germen-Growths in the fame Tifa. Vf the Leaves be much indented or jagg’d, now we have the Duplicature are divers Plats in one Leaf, or Labels of a Leaf;; wherein there but in diftiné Sets, a leffer under a greater; asin Souchus, Tanféy, &c. When the Leaves ftand not collaterally, but fingles and are moreover very broad ; then we have the Multiplicature; as in Goofebe rries, Mallows, &c. the Plats being not only divers in the the fame Set continuant, and fo each Leaf gather fame Leaf; but of ’d up in five, feven or more Foulds, in the fame manner as our Gentlewomens Fans, Whereeither the thickneof the Leaf will not permit a F'lat-Lap, or the fewnefs of their number, orthe fmalnef § of their Fibers, will allow the Row/,there This may be obferved. Which is fometimesfingle, as in Bears-Ears, Arum, Flamnmla, Jerufalem Cowflip , &c. Sometimes double, the two Rowls beginning at each edge of the Leaf, and meeting in the middle . Which again, is either the Fore-Row/, or the BackRowl. If the Leafbe defign'd to grow long, now we have the BackRowl, asin Docks, Sorrels, and the reft of this Kindred: as alfo in Primrofe, and other like Plants. -For the main Fibers, and there- with aconfiderable part ofthe Cortical Body {tanding prominent from the Back;fide of the Leaf, they thus ftand fecurely couch’d up betwixt a Book I Book I |