ATHYRIUM FILIX-FCRMINA. 



89 



drooping form, and of mcdiuni size. Length of frond twt^lve 

 to eighteen inches. Broidly lanccohite and Lipinnate. The 

 pinnre are distant and caudately acuminate. The pinnules distant, 

 pinnatifid, narrow-oblong, and blunt. Lobes shallow and short- 

 toothed, the apical teeth also diminutive. The basal pinnules 

 are situated close to the main rachis, making the pinmc quite 

 sessile. Another slender form, not unlike this in having a lax 

 habit, in being sessile, in having caudate pinna?, and narrow 

 distant pinnules, has been found at Todmorden by Mr, Stansfield. 

 In the Todmorden plant the pinnules are unequal in length, 

 and the teeth are unusually large. 



Fig. 407.— Pinna. 



Trifidum, Moore. (Fig. 407.) — A slender, narrow variety. 

 Length of frond twenty-eight inches, of which one half is the 

 stipes. Width five inches in the broadest part. Pinna? linear- 

 lanceolate, acuminate, distant below, and not crowded above. 

 Pinnules oblong-ovate, their apices rounded, divided to the 

 costa, except near the apex, where pinnatifid, dentate. Found 

 at Mayford, in August, 1861, by j\Ir. Thomas Moore, of the 

 Chelsea Botanic Gardens. The illustration is from Mr. P. Neill 

 Fraser, of Edinburgh. 



Fig. 408— Pinna. 



Thyssaxotum, IToore. (Fig. 408.) — Found in the Island of 

 Guernsey by Mr. James, of Vauvert. An exceedingly handsome, 

 VOL. II. N 



