250 



LASTREA FILIX-MAS. 



ought to go together, but Mr. Monkman's name "imbricata" 

 is the most applicable. Grows quite erect, the fronds, pinnro, 

 and pinnules, being densely crowded. A strikingly distinct 

 very dwarf variety. This belongs to Lastrea propinqua. 

 Varying so little from the var. crisjia, it has been thought 

 unnecessary to give an illustration. 



Fig. 200. 



Marsdenie, Loioe. (Fig, 200.) — A most remarkable and 

 distinct variety found in Yorkshire by Miss Beevor, of 

 Coniston. The pinnae are opposite below, subopposite above, 

 and alternate near the apex of the frond; elongate and curving 

 upwards. Pinnules opposite, decurrent, the opposite pairs 

 forming a series of cuneate based wide-spreading cups or vases 

 threaded one within the other. Minutely tridentate. The 

 basal pinnules deeper cut and not decurrent to the same extent 

 as the others, and although opposite the united pair do not form 

 a cuneate base. Rarely the pinnce and pinnules are depauperate. 

 The two basal pairs of pinnae are more distant than the others. 

 This is a strikingly distinct form of the true Lastrea Jilix-mas, 

 for the illustration of which I am indebted to Miss Beevor. 

 Length of frond thirty inches. Stipes rich brown, and almost 

 devoid of scales. 



