175 



and its mother-leaf, reconstructed from a séries of ± 

 130 sections through the base of the sprout figured 

 in flg. 6. The vascular bundles «, a\ p and /^' (/y 

 and /?' lying out of the plane of drawing) unité 

 with the group of vessels and tracheids y, which 

 are connected with the vascular System of the 

 mother-leaf. 



