110 



ASPIDIUM ANGULAPvE, Var. Thuncatum. 

 Lowe. 



PLATE XLV. B. 



Pulystichum angulare, var. truncatum, MooEE. 



Aspidium — Shield Fern. Angulare — Angular. Truncatum — Truncate. 



In the Section Polystichum of Atjthoks. 



This remarkable variety of a handsome British species was 

 originally found in Ireland, but has since been raised from 

 spores in various ferneries. Its distinguishing features are the 

 truncated form of the fronds and pinnte. 



The frond terminates abruptly. The pinna; are short, -with 

 from three to four pairs of pinnules, terminating with a fan- 

 shaped pinnule, the remainder of the pinnules being palmatcly 

 lobed and deeply toothed. 



Veins ramose; venules simple or furcate. 



Sori sub-medial, almost marginal. 



Length of frond from nine to eighteen inches, breadth from 

 two to three inches. Colour deep green above, much paler 

 beneath. Stipes very scaly. 



The coriaceous texture of the fronds, and their abrupt ter- 

 mination, as well as those of the pinnae and the pahnately 

 lobed pinnules, render this highly-interesting Fern very distinct. 



For fronds my thanks are due to Mr. Stansfield, of Todmordcn. 



