CHAPTER Y. 
FERN GROUPS. 
HERE is relationship in the Fern- 
world ; and although we do not 
propose strictly to adopt the dis- 
tinctions made by botanists, we 
shall observe a certain order in arranging 
our favourites. Hitherto we have described 
those Ferns which live, so to speak, in a sort 
of isolation amongst ns. Of the ten first de- 
scribed, each one stands alone, and is, so far as 
Britain is concerned, the only species of its genus. 
In treating of these, we have not thought it neces- 
sary to place them according to any particular 
method of arrangement. There is a certain rela- 
tionship existing between the Moonwort and the 
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