GUAYTLK ANl) MARIOLA. 



207 



marking the slow initial growth of the seedling, new slender 

 shoots arise, growing to a height of 30 cm., more or less, in 

 two months. From the base of each such shoot an adven- 

 titious root starts out at the base, immediately above the point 

 of origin of the shoot. This usually single root develops as 



Kiff. (. -A maiiiihi |ilaiil ( 1 'ai llieiuum incanum H. B. K.). The arrow 

 point iniiicatrs the point of in-scrtinn of tlie rig'ht liand branch, marked with 

 a wliiti" hand. 'I'he corresponding root is als(i marked. At the left are two 

 detacli('<l shoots each ^vitll its separate ntot system. 



a tap root, and supplies all the water for the daughter sh(K)t. 

 which develops apace, and becomes ultimately an independent 

 plant. I he isthi.'Uis of tissue between it and the parent plant 

 does not enlarge much in any case, so that it is quite easy, on 

 taking up a bush of mariola, to separate it into several 

 smaller plants, by merely breaking off the independent ele- 

 ments. Thus the habit of mariola and guayule in this regard 



