188 



A TKXTBOOK OF BOTANY [Ch. IV,10 



whence tlicir liotaiiical name of rootstocks ; but they are 

 always distinguished by the presence of nodes and rudi- 



FiG. 130. — Stolon of IM.'ick RasplxTiy. (From Bailey.) 



mentary scale-hke leaves. Such rootstoeks often accumu- 

 late food, thus tending towards new organs, whicli we maj' 

 best consider in the following section. 



There also occur a khul of trnrcliiig stems. The very 

 slender woody stems of the Bramljles bend over and touch 



( \N 



Fiu. Fil. — .Sr 



»»( miluili(,riiiii. showiuj; t\']>ical olTsrts. 

 (From KoniLT.) 



the ground at tiieir lips, whore (hey take root ; and thus the 

 plants form dense and ever a.dvancing thickets (Fig. 130). 



