110 
POLYPODIACE.E. 
and he speaks of its similarity to Pteris as deceptive. I need 
make no apology for having introduced his interesting observa- i 
tion as a foot-note (see p. 109), and I may observe that the genus 
Onoclea is now generally restricted to the beautiful Onoclea sen- 
sibilis of North America. 
The vignette below refers to the next rather than the present 
species ; it represents the Common Polypody in a favorite sta- 
tion, one of those decaying stumps over which its creeping rhi- 
zoma delights to wander. In the south-west of England it ^ 
ascends the loftiest trees, and in Epping forest I have often seen 
it ornamenting, with its bright green fronds, the heads of the 
pollard horn-beams, when the wintry blast has stripped them of 
their summer verdure. 
