scoi.oiM'.NDiurM \ri.(; VKH. 



319 



lobes narrow. The under side of the frond has an cxcurrcnt 

 soriferous membrane, and the costa terminates in a horn. 



Fig. 720. 



Fig. 721. 



CoRNUTO-LACERATUM, Moiikmau. (Fig'. 720.) — A dwarf lac- 

 eratum, which is cornute. Length five inches, one half being 

 the stipes. The illustration is from Mr. Monkman. 



Latum, Loive. (Fig. 721.) — Length twelve inches, width 

 four inches. Slightly crisped, outline irregular, near the apex 

 naked to the costa, apex of the costa cornute. This differs 

 from latifolium, the latter variety being thirteen inches long, 

 and nearly five inches wide, with spore-cases as much as 

 two inches in length. 



Sinuatum, Wollaston. — Found at Ilfracombe by the E,ev. J. 

 M. Chanter; at Nettlecombe by Mr. C. Elworthy; Littlehampton 

 by Mr. G. B. Wollaston; Ashdale, near Helmsley, and Moughton, 



