xx] 



PTERIS 



305 



sun leaves ; the former are spreading and softer, while the latter 

 are relatively smaller and of harder texture (fig. 236, a and b). 

 Even in one leaf six feet high, growing through a dense bush 

 of gorse and bramble, the lower part was found to have the 



Fio. 236a. Pteris nquiUna. 

 Fart of leaf from greenhouse. (\ nat. size.) After Boodle. 



features of a shade leaf while the uppermost exposed pinnae 

 were xerophilous. 



The resemblance between some of the filmy Hymenophyll- 



