THE GENUS DRTOPTERIS IN BRITAIN 



It therefore seems probable that D. remota in the continental sense, or at least plants 

 very like it, do occur sporadically in Britain, though the evidence suggests that they 



D. nemo/- a ( /re/and) 



Bo^dii 



Suhcr/pina 



Fig. 60. The lowest pinna from plants of different age of apogamous triploids 

 referable to Dryopteris remota (A.Br.) in the continental sense. Natural size. 



have not yet become established as local populations. The question of their origin is 

 therefore a matter of interest. They could perhaps arrive in Britain as stray spores 

 from the Continent. If this is so, however, it is perhaps remarkable that they should be 



74 . 



