LASTREA FTLIX-MAS. 



;7o 



Paleaceo-erosa, Moore. — Found by Mr. Thomas, at Cwm- 

 Glvn, near Pont-y-Pool. Differing in having small irregular-sized 

 pinnules with erose margins. 



Fig. 225. — Apex. 



Grandiceps, Wollaston. (Fig. 225.) — The finest and most 

 crested form of the true Lastrea Jilix-mas ever found, having 

 the apex of the frond densely tasseled and ramulose. The 

 pinnae are also beautifully crested, and occasionally the pinnules 

 or the lobes of the same. In other respects the variety is 

 normal. 



Dextex, Moore. — Raised from spores, by Messrs. Stansfield, 

 of Todmorden. A form of Lastrea propinqua. The apex of 

 the frond is always truncate or abrupt, having an ordinary 

 sized pinna in the place of the usually attenuated upper 



