Of Leaves] 277 
b'races the little under bud, and fo keeps it clean and 
warm. 
The leaves of onions are all pipes one within another, 
having a fmall aperture about the middle common to all 
of them, even the moll minute ones in the center. 
As the buds of common fumach are exceeding tender, 
nature appears in a peculiar manner folicitous for their 
prefervation, being lodged within the body of the flalk, 
as entirely as a kernel is within an apple; from whence 
it is that the bafis of every llalk is extremely fwelled. 
There are alfo globular excrefcencies, fpots, hairs, 
thorns, and prickles. 
Globulets are feen upon orach, but more plainly upon 
bonus henricus, in thefe growing almoll upon the whole 
plant, and being very large, are by moll people taken 
notice of; but the microfcope hath difeovered to us that 
they are the natural and conllant offspring of very many 
other plants, they are of two kinds tranfparent, as upon 
the leaves of hyfop, mint, baume, &c. white on german¬ 
der, fage, &c. Sometimes they appear like a fine powder 
■upon the leaf, thefe were firll white and tranfparent as in 
bear’s ear. If this be licked of, it will afford the t'alle of 
the eflential content of the plant. They frequently grow 
on both fides the leaf, yet fometimes, as in ground-ivy, 
chiefly on the back fide thereof, and in many plants 
where the elder-leaves have none, on the young buds 
they are very numerous, as in corin-tree, forrel, and 
others. 
Spots are obfervable in St. John’s-wort, rue, ground- 
ivy, pimpernel or anagallis, &c. when held up againll 
the light. 
Thorns are lignous and cortical, the firll are fuch as 
thole of hawthorn, fomewhat like thefe are the fpinets or 
^ 3 thorny 
