268 LASTREA riLlX-MAS. 



Fern, having a strong resemblance to Polystichum angulare. 

 The fronds are elegant in form, and deep green in colour. 

 Pinnse alternate, approximate, their apices, as well as the apex 

 of the frond, dilated into fan-shaped fingers, hence its name; 

 these niultifid apices of the pinnae largest on the basal pinna3, 

 and becoming smaller towards the apex, near where not multifid, 

 except the terminal pinna, which is slightly so. Pinnules 

 deeply incised and decurrent. Length of frond two feet. My 

 thanks are due to Mr. Clapham, of Scarborough, for fronds. 



Fig. 218.— rinna. 



PuMiLA, Moore. (Fig. 218.) — Found on Snowdon by the 

 late Mr. D. Cameron, and more recently near Llyn Ogwen by 

 Mr. S. O. Gray. A dwarf alpine variety, erect in habit. 

 Length of frond nine to twelve inches, occasionally fifteen or 

 eighteen inches; stipes two or three inches in length, and 

 having fimbriate scales. Fronds lanceolate and pinnate. Pinnae 

 brief, blunt, and somewhat deflexed, profoundly pinnatifid, the 

 apex recurving. Pinnules small, oblong, obtuse, crenate, 

 convex, apex recurved. Fronds and pinnae concave. Veins 

 once forked. Sori confined to the anterior branch of the 

 lowest anterior vein, forming a single line on each side the 

 midrib of the pinnae. Fronds sweet-scented. I am indebted 

 to Mr. J. R. Pearson, of Chilwell, near Nottingham; to Mr. 

 Joseph Sidebotham, of Manchester; to Sir Oswald Mosley, 

 Bart., of Rolleston Hall; and to Mr. Edwin Cooling, of 

 Derby, for plants. This Fern is very distinct in habit and 

 general appearance, and is separated by Mr. G. B. Wollaston 

 as a doubtful species. Readily cultivated, and, like the form 

 ahhreviata, rapidly propagates itself. When a plant has been 

 growing for four or five years it may readily be divided into 

 from twelve to twenty plants, which would not be the case with 

 the true forms of Lastrea jilix-mas or of Lastrea pseudo-mas. 



