114 



ATHYRIUM FILIX-FCEMINA. 



minutely bidentate. The basal pair of pinnules usually much 

 larger than the others. The upper half of the pinnae not 

 divided to the base. I am indebted to Messrs. Stansfield for 

 fronds. 



Fig. 448. — Middle portion. 



Pritch.\rdii, Stansjield. (Fig. 448.) — Found in 1861, near 

 Ruthin, in North Wales, by Mr. T. Pritchard. In the Fieldice 

 section, but having permanent differences of a marked character. 

 The fronds of this form, unlike those of Fieldice, which are 

 conspicuously truncate, form gracefully-curved lines. The fronds 

 attain a length of forty inches, although scarcely more than 

 an inch wide, and the habit of the plant is vigorous. The 

 pinnae are cross-shaped, sometimes ternate, and, as Messrs. 

 Stansfield very' aptly say, for at least three fourths of the 

 length of the frond being knotted into small bows of from 

 half an inch to three quarters of an inch in width. In the 

 young state the fronds are not unlike Frizellice. The illus- 

 tration is from Messrs. Stansfield. 



