POLYPODIUM. 237 



perfect character it forms a very elegant Fern. — Lowe, Our Native Ferns, i., 

 fig. 7. Moore, Nature-jjrintcd British Ferns. 



P. Y. a. Stansfieldii — Stans-field'-i-i (Stansfield's), Loive. 



This broad-fronded variety, with long, narrow, acutely-pointed leaflets, 

 is distinct from the one just described and much handsomer. According to 

 E. J. Lowe, it was originally discovered near Cark, in Lancashire, by Mr. 

 Stansfield, and subseqiiently near Settle and near Milnthorpe by other 

 collectors.— Zoioe, Our Native Fenis, i., t. 9. 



P. Y. attenuatum— at-ten-u-a'-tum (diminished), Wollaston. 



In this variety the fronds are large and provided with narrow and much- 

 attenuated leaflets ; these are distantly placed, alternate (not opposite), slender, 

 and of a thin texture. — Lowe, Our Native Ferns, i., fig. 10. 



P. Y. aurito-dentatum — au-ri'-to-den-ta'-tum (eared and toothed), 



Monkman . 

 The fronds of this singular variety, originally found growing upon a wall 

 near Lake Windermere, are normal in outline and provided with leaflets 

 strongly eared next the rachis and deeply toothed on their inferior margin. It 

 is a pretty Fern, of constant characters. — Lowe, Our Native Ferns, i., fig. 8. 



P. Y. auritum — au-ri'-tum (eared), Moore. 



This variety is readily distinguished by the ear-like appendage or leafit 

 attached, sometimes to the anterior, and at other times to the posterior, base 

 of the leaflets of its fronds, which are normal in outline. It seems to have 

 occurred simultaneously in various places, as, according to Lowe, it was 

 gathered near Windermere, near Settle, at Heldenley, near Malton, Fountain's 

 Abbey, Keswick, and Bowness, and in North Wales. — Lowe, Our Native 

 Ferns, i., fig. 9. Nicholson, Dictionary of Gardening, iii., p. 195. 



P. Y. bifido-cristatum — bif'-id-o-cris-ta'-tum (twice-cleft and crested), 



Moore f 

 Druery, in his excellent work "Choice British Ferns," states that this is 

 a long, narrow, robust, crested form ; its short leaflets are fanned out at the 

 tips into rounded crests, and the frond-tip, repeatedly divided, forms a large, 

 flat tassel. — Druery, Choice British Ferns, p. 120. 



