355 
sections through the same young plant. [n the section shown 
by Fig. 35 the vascular bundle of first root and cotyledon, the 
already very much developed horseshoe shaped xylem of the 
second root and the procambium of the second leaf are deve- 
TN D 
A 
X / 
AA OS) 
Dose 
Ÿ 
[È ï 
Ar 
Fig. 33. 
loped. This section lies in the plane of both apical cells of second 
leaf and stem tip. 
Fig. 34 shows the traces of second root and second leaf just 
before they join. The third root is cut transversally. Îts apical 
cell is conspicuous (Fig. 25, shaded cell). It is a four sided, 
flattened pyramid. 
