








au 
» MINA Zo 
WW MA ZZ 
1, y “ps y LP? 
Gp 
ld 



Ys 
WY 
SNP 
| Maiy WY 



OZ 
LOS Sy 
- Pge 
Wa wig VP BLE. ye 
SSS XY Ni gy ht Ze 
SN WEVA 
WHY 
WW 

\\4 
Fig. 440. Equisetum arvense 
Left, sporophyte with fertile branch (at the ri ght) and two young stante brinehes 
(at the left) (x 2); center, shield-shaped sporophyll with sporangia (x 10) ; right, 
sterile branch (x 4) 
