POLYSTICHLM AXGULARE. 



87 



where they become ovate and decurrent, as In Polystichum 

 aculeatum. The texture is thick and coriaceous, like P. 

 aculeatum. This charming Fern would appear to be the in- 

 termediate link between the two species, P. angulare and P. 

 aculeatum. The illustration is from a plant in the possession 

 of Messrs. Stansfield, of Todmorden. 



Fig. 54. 



Obtusum, Moore. (Fig. 54.) — An exceedingly handsome Fern, 

 found in Devonshire, by Mr; Charles Jackson, of Barnstaple. 

 The fronds are linear-ovate and subtripinnate. The pinnae, which 

 are obtuse, are somewhat imbricate towards the tips. The 

 pinnules subrotund, profoundly serrate or biserrate. Stipes and 

 rachis scaly, the scales narrower, and brown in colour. Sori 

 copious, covering the upper two thirds of the frond. Length 

 of frond twenty inches, width three inches. The frond illustrated 

 was forwarded by Mr. G. B. Wollaston, of Chiselhurst. 



Hastulatum, Moore. — Foimd near St. Martha's Hill, Surrey, 

 and m Devonshire. It is of the normal form, and scarcely 

 deserving the name of a variety. Its chief featiu'es are the 



