PLATE 90 
Ss 
XS 
o 
=e 
WOOK 
10) 
RuetiiA Root (Ruellia ciliosa, Pursh.). 
with root hair. 
y 
Parench 
5. Endodermis. 
10. Pith. 
2. Parenchyma cells with dark contents. 
ma without dark cell contents. 
d phloem. 7. Cambium. 8. Xylem. 
4. 
pidermis 
Bast fibers an 
E 
. Sclerid. 
3 
6. 
I. 
