182 POLYSTICHUM ANGULARE. 



Pinnae alternate, more or less acuminated at the apex, sometimes 

 ending abruptly, especially towards the base of the frond. 

 Pinnules large and broad, auriculate, toothed, and spinous; 

 the superior basal pinnule larger, tripinnate, the lower 

 auriculate lobe being stalked. Scaly. I am indebted to Mr. 

 Elworthy, for fronds. 



Abruptum, Stansfield, MSS. — Mr. Stansfield infonns me 

 that this variety has almost lost its distinctive character, and 

 is scarcely worth its name. It has merged into the form 

 Prcemorsum. The variety has been included here, as it is 

 known in cultivation; the mention of it must therefore be 

 looked upon as pointing out that it no longer deserves to 

 be retained amongst the distinct varieties of Polystichum 

 angulare. 



Setosum, Wollaston. — Found by Mr. G. B. Wollaston, of 

 Chiselhurst, near Ottcry St. Mary, Devon. This is described 

 by Mr. Thomas Moore, of Chelsea, under the name of Quad- 

 ratum, but the description in his octavo edition of "Nature 

 Printed British Ferns," vol. i, page 144, is not sufficiently 

 characteristic, and as the pinnules cannot be considered as in 

 the least degree quadrate, Mr. Wollaston, taking the remarkably 

 setose feature of the pinnules, has re-named it most appro- 

 priately Setosum. This variety has lanceolate bipinnate fronds, 

 and linear -lanceolate pinnse. The pinnules remarkably setose, 

 constricted, and wavy. I have received fronds from Mr. C. 

 Elworthy, of Nettlecombe, twenty-six inches long, by four 

 inches wide in the widest part, with the pinnae ascending at 

 an angle of forty-five degrees. See page 97, under Quadratum, 

 Moore. 



Brachiatum, Wollaston. — Very handsome and distinct, 

 having a light elegant appearance. Colour of frond yellowish 

 green above, rust-coloured beneath, from the sori. Length 

 of frond eighteen inches, width four inches. Pinna? crowded, 

 narrow, and acuminate, varying in length in different portions 

 of the frond, so as to cause a curiously-shaped frond, narrower 



