O'i, 



^^^u;, 



< in, 



prevent 



• tb 



'^, 



»i 



atropa 



'H 



11 m, 



. ould be 



' plants 



.lupto- 

 2w ; and 

 •^rov tk 



li u m ail' 



,,oftbeir 



-ble pro- 

 ..uclsaiid 



1 V in prO' 

 3'have not 



-live 



v-. trees? 

 ]ted. 



m 



I 



a 



arn^ 



ou'"? 



ries 



of tbis 



0! 



\-i<.. 



010- 



Sect. XIV. 3. 2. 



OF PLANTS. 



35« 



mofs-rof( 



d on the y 



fhoots 



d leaf-ilalks of 



Both thefe are covered with thickfet bridles, which terminate in glo 

 bular heads, and not only prevent the aphis from furrounding them 

 fuch great numbers, and from piercing their veflels fo eafily, but 



in 



alfo fecrete from the gland, with which I fufpe^ them to be termi 



:rious to the infe£t 



nated 



J 



which is inconvenient, 



delet 



which touch 



Hence mofs-rofes appear to be lefs injured by the aphis, than other 



fes, w 



have lefs of th 



raour 



d while 



plum 



d on many herbaceous plants, they hang round the upright youn 



fh 



their heads downward 



d 



m 



f( 



th 



nk 



fo 



y to conceal the rifing fhoot ; yet on nut-trees, though they 



feen in millions beneath the leaves on the unarmed parts, they 

 appear round the young flioots, nor on the large trunks of the vef- 



fels beneath 



h have acquired a panoply of bridl 



with crlandular heads to them, like thofe round the mofs-rofe, b 

 without the branching ftrudure of the latter. While thofe plant 

 which are not infefted with the legions of this fel f- p rod u dive animj 

 have probably acquired fome material mixed with their fap 



»= 



blood, which is poifonous to them 



fe plants, which poffefs 



Iky or a yellow blood, as the fpurges euphorbia, or..the celand 



h 



e 



d 



fig-tree, fie 



is 



Nor is this more aftonifhing, than that the holly-trees (liould 

 ally fupply prickles 01 



ickles only to their lower leaves, about fix or eight 

 feet from the ground, as high as the animals can reach them, which 



& 



Id prey 



pon 



them ; but refufe 



penc 



f pult 



cr 



D 



forth 



prickles in their higher branches, which are favcd by th 



as I have repeatedly obferved on the numerous holly-trees, whicl 

 are the ornament of Needwood foreft. 



From hence I fufpedt, that another reafon, why the leaves of nut 



d up or blifkered like thofe c 



1 



trees 



d 



f rofe 



are not 



nedarines, peaches, plums, and cherries, is becaufe their foot-fialk 



I 



d 



