The comparative anatomy of trunks together with an account of their vegetation grounded thereupon; in two parts: the former read before the Royal Society, Feb. 25. 1674/5; the latter, June 17. 1675. The whole explicated by several figures in nineteen copper-plates; presented to the Royal Society in the years 1673. and 1674. By Nehemiah Grew, M.D. and fellow of the Royal Society.

Fig. 26. Representeth a quarter of a slice of the stalk of the lesser common Thistle cut transversly.

ABCD The Bark.

AB The Skin.

HI. The Parenchyma.

AHB. A sort of Lymphaeducts contiguous to the skin.

ee. One parcel of the said Lymphaeducts.

DC. A ring of other Lymphaeducts, consi∣sting likewise of several parcels, standing on the inner verge of the Bark.

aa. One of the said parcels.

HC. A ring of Milk-vessels, consisting of se∣veral arched parcels, adjacent to the fore∣said Lymphaeducts.

cc. One of the said parcels.

DCFE. The wood, divided into several portions.

aatt. One of the said portions.

vvv. The true Wood; throughout which the Air-vessels, represented by the larger white rings, are distributed.

EFG. The Pith, consisting of very large, and angular bladders: the sides whereof are composed of Fibers stitched together, and running chiefly horizontally; winding in a circular manner, out of one bladder

into another; and so mutually inter∣secting the several arches of their whole circumference.

TT. One of the said bladders, or rather one half, the other being cut off. The horizon∣tal Fibers whereof, not being single, but so many threds; there being several Fibers in one Thred.

SS. One single Fiber.

EF. Other Vessels, both Lymphaeducts, and lactiferous, within the wood, or on the verge of the Pith.

tt. The Lymphaeducts.

ss. The lactiferous Vessels.

stac. The Insertions running betwixt the seve∣ral portions of wood, from the Pith into the Bark.