540 LIFE-HISTORIES 
at at ot et OOS st 
ks = 
ag es 
Phe oui fo 
F wey “ 
. a : 
ms 
= 
"Essoccss 
Sess 
Fig. 367.—Tree-Fern. Section of trunk. A wedge cut from the same, 
magnified to show the pith (P), a fibrovascular bundle (V F V) with 
its sclerenchyma (F B) and vessels (V S), and the rind (F L) and 
epidermis (£).  (Baillon.) 
Fic. 368.—Fern Brood-bud (Aspidium Filix-mas) on base of leaf-stalk, i. 
(Luerssen.) 
