ae ee e aug Bye Meh A cle INT OS nn a 
a \ ¢ ; a e \ i i art v. is ™ aA fist) vate : 
BR SN EC GST SEIS sO it ca rr 
ail ERE eC i L0G W ; A y ; V ds . oid ne  W ‘ i a - tee hg eas ei 
(AAPOR 10's @ Ma Structural and Physiological Botany, = 
| | pitt eae eee eae a 
e e ° 5 Oe er Pah he ee ie eee 
a. larger in the root than in the stem ; this being the cause of __ 
rie the smaller specific gravity, and the less value as fuel, of the 
root as compared with the stem. The annual rings are also 
often much narrower. ‘The essential peculiarity of the root 
is the possession of a voot-cap (see p. 72). Meee: 
| L ne 
Oper @ (te MBan | 
ADT y tty L A IAL oe 4 
Vo oy oe r60%s a \T ) a 
ono A Br eaiiwy & OW oA OK 
p AHO SO Re RY 
Cay: -Ceagrenegee oe: Sy 
lL VOSAD Gly Tue oy : 
( aha 
eu a 
We 
2g § i 
@ 
af 
ap | 
Fic. 477 .—Transverse section through a young root of Razenculus acris; G group 
of vessels just formed; B-young bast-bundle ; s vascular bundle-sheath ; Rk cor- 
tical parenchyma ; m pith (x 200). : ae 
; The leaves of Dicotyledons present no essential differ- — 
ence from those of Monocotyledons [except in the arrange- _ 
ment of the vascular bundles or veins]. ” Sa 
