LASTREA DILATATA. 321 



Recurvifolia, Moore. — Found at Aberdeen and Moffat. 

 From the latter locality the fronds are rather broader. It is a 

 comparatively dwarf variety, and is distinguishable from having 

 somewhat crowded sessile pinnules, which are decidedly convex 

 on their upper surface, whilst the fronds themselves have a 

 tendency to concavity along the centre of the pinnse. 



Obtusa, Moore. — Found at Hampstead, Middlesex, by Mr. 

 Thomas Moore. Distinct, and having moderate sized fronds. 

 Fronds narrow-ovate. Pinnules oblong-obtuse and shallow 

 lobed, attached to the stem almost at right angles. Teeth few, 

 coarse, and acuminate. 



Fig. 269.— Middle pinna. 



Stansfieldii, Moore. (Fig. 269.) — A new variety found in 

 Cheshire by Mr. J. Lord. Length of frond eight to ten inches, 

 breadth four to five inches; outline of frond ovate-lanceolate or 

 subtriangular ; pinnae strap-shaped, blunt; pinnules bluntly-ovate, 

 mostly biserrate, thick, leathery, recurved. The characteristic 

 difference of this variety is the crisping or recurving of the 

 pinnules, which are of a thick, leathery texture, and so abun- 

 dantly glandular as to give almost a horny aspect to the frond. 

 My thanks are due to Messrs. Stansfield and Sons, of Vale 

 Nursery, Todmorden, for fronds. 



BiSTANS, Moore. — Found at Coombe Wood, Surrey, by Mr. 

 S. F. Gray. Fronds smoother and more lax than Chanterice^ 

 which it most nearly resembles. The form of the frond ovate; 

 length thirty-six inches. Pinnae distant, the lowest pair only 

 very oblique, and the next pair slightly oblique; scarcely 

 enlarged on the posterior side, except at the base of the frond. 



