WOODSIA HVPERBOREA 259 



WOODSIA HYPERBOREA (The Alpine Woodsia) 



(Plate XL) 



The Woodsias, of which there are two species indigenous to Great 

 Britain, W. hyperborea and W. ilvensis, are both small-growing 

 Ferns, rising from small, definite rootstocks in tufts. Our figures 

 {Z 1 ^, 319), show both size and make, and obviate description, 

 except that the fronds are somewhat hairy, and the spore capsules, 

 which are in small round heaps, are protected by a fringed indusium, 



Fig. 318. Woodsia hyperborea. 



Fig. 319. Woodsia ilvensis. 



quite distinct from any other genus. The species is rare ; it has 

 been found in Wales, but like W. ilvensis, which is the commoner of 

 the two, most of the recorded finds have been in Scotland, and we 

 have ourselves found it on Ben Lawers in Perthshire. Culture must 

 be on the lines of the rock-loving species, with some broken porous 

 stone mixed with open, well-drained soil. No varieties. 



WOODSIA ILVENSIS (The Oblong Woodsia) 



(Plate XL) 



Regarding this species, we have practically nothing special to 

 add to our foregoing remark on W. hyperborea, since the difference 

 is indicated by the plates and illustrations. 



