230 BRITISH FERNS 



Concavo-ramosum (Fig. 269). — Raised by Mr. Clapham ; frond 

 stalk branches, each branch bearing a crested frond with leafy 

 portion folded inwards. 



Conglobatum. — Found by H. Bull, St. Pierre ; a finely crested 

 sagittato-projectum. 



Conglomeratum (Fig. 270).— Found at Truro by Mr. Dadds ; 

 a naked, stalked, heavy capitate form. 



Fig. 271. S. v. congregatum. 



Congregatum (Fig. 271). — A fine form of ramo-cristatum with 

 heavy, branching head. 



