riLMT FEENS. 



105 



which the receptacle divides is jagged or toothed at the 

 edge, whilst in the latter the margin is smooth. 



On rocks which are continually moist, or subject to the 

 spray of waterfalls. Not uncommon in rocky or moun- 

 tainous districts. 



These little ferns require a special mode of cultivation 

 by themselves, and if the conditions are complied with 

 they will succeed. Last year we collected a tuft of 



Wilson's Eern, about the size of the hand, at the Swallow 

 Palls (well known to every Welsh tourist), and placed it 

 on a flat piece of porous sandstone, tyiug it in position 

 with black thread. The sandstone was placed in a 

 common glazed pan, and water poured in to the depth of 

 half an inch, then a bell-glass was placed over all, aud it 

 stood in a cellar for two months without being looked at. 

 It was then taken out, uncovered, found to be damp and 

 healthy; a little water was sprinkled over the fronds, 

 more water put in the pan, and the glass replaced. The 

 whole was now placed under a flower- stand in a gloomy 

 corner of a greenhouse, where it continues to flourish. 

 All the moisture necessary for its growth percolates 

 through the sandstone, or is derived from the moist atmo- 

 sphere by which it is continually surrounded. If no shady 



