POLYSTICHUM ANGULARE. 



91 



branched crest -svhicli generally turns backwards. 'J'he pinnae 

 terminating somewhat bluntly, and the pinnules and their auricles 

 ending in sharp projecting points. Length of frond from 

 two to three feet, breadth of frond about nine inches. The 

 frond illustrated was from the collection of ^[essrs. Stansfield, 

 "V^ale Gardens, Todmorden. 





Fig. 59. 



Intermedium, Wollaston. (Fig. 59.; — Found near St. Mary's 



Cray, in Kent, by Mr. R. Sim, of- Foot's Cray Nursery. vSlightly 

 different forms found in Sussex and Wales. This is a robust, 

 fleshy-looking, and rigid variety, closely resembling Polystichum 

 aculeatum, especially in its thick and leathery texture. An 

 upright-growing variety. The fronds, which are from twelve to 

 twenty-four inches in length, and often abrupt at the apex, 

 (in which case they have a tendency to produce bulbils,) are 

 linear-lanceolate in form, the pinnae narrow, and the pinnules 

 short, crowded together, over-lapping each other, subtrapeziform, 

 stipitate, strongly auricled, and profoundly inciso-seiTate, the 

 segments being biserrate, and more aristate than usual, and the 

 basal anterior lobe considerably enlarged. The upper half of 

 the frond fertile, and crowded with spore-cases. In the lower 

 half of the frond the pinna? are opposite, and in the upper 







