( 37 ) 
thofe plants are generally furnimed with this 
kind of Stipule, which are not ftrong enough 
to fupport themfelves. Vines (vitis) twift 
themfelves round other trees by their clafpers 
or tendrils,, and thus raife themfelves from the 
ground. Long poles are placed in our hop- 
yards for the fupport of the hop plants ( ha- 
mulus), which make a very elegant appear- 
ance in their molt luxuriant feafon ; their 
natural place of growth is in hedges, where 
they readily find fupporters : all thefe climb- 
ing plants are in fome degree injurious to the 
tree of which they take hold for fupport, as 
they deprive it of that mare of light and air 
to which it has a natural right. There are, 
however, fome fpecies of climbers which feem 
intended by nature to receive their nourifh- 
ment from other plants, as dodder (cufcuta). 
The feed of this plant fplits without Cotyle- 
dons, fo that the young plant, having no 
ftore of nourifliment laid up for it by nature, 
feems neceffitated inftantly to find a fofter- 
mother, or to perifh ; when the feed fplits it 
protrudes a fpiral body, which, without 
making any attempt to root itfelf in the 
earth, afcends the vegetables in its neigh- 
bourhood, twifting round them, and abforbing 
D 3 it's 
