







186 BRITISH FERNS 

/; 
NN NND ча 
3 N 2777 22 
N АСА X 7777) % : 
2227 
TAD 
Fig. 210, P. v. suprasoriferum. Fig. 211. Р. v. Thompsonii. 
SUPRASORIFERUM (Fig. 210).— Found in Sussex by Mr. С. В. 
Wollaston; subdivisions narrow and irregularly toothed, à la 
marginatum ; spore heaps often on upper surface at the edges, as well 
as on frond backs. 
Тномрзоми (Fig. 211).—Found near Whitby by Mr. George 
Thompson ; an obtuse, dense, almost imbricate form. 
TRUNCATUM (Fig. 212).—Found in Ireland by Dr. Allchin, and at 
Windermere by Mr. Clowes; pinnæ minutely saw-toothed, fronds 
sometimes abruptly terminated, midrib projecting like a thorn. 

