PLATE 127 
ys n § 
alg (Wy Que a 
PALS Wh EO pe 
Cre ATT PERO ae, 
RSNA aera TF 
{S 
a8 
A 
pat, 
ay 
NY 
x 
\ 
nel 
. 
bee 
& 
uM 
Cy 
BI-COLLATERAL BUNDLE OF PuMPKIN STEM (Curcurbita pepo, L.) 
I. Vessels. 
2. Sieve tubes. 
