248 GREEN SPLEENWORT. 



to Ray, &c. I should add, that the late Mr. Samuel Gibson, 

 of Hebden Bridge, obliged me by the sight of specimens which 

 had the pinnae lanceolate and acute : he proposed to call this 

 form Asplenium viride, var. acutifolium. 



Cttltett. 



This fern is of easy culture in the open air, provided the soil 

 be light and the atmosphere humid. In a greenhouse it is very 

 uncertain, thriving well for the first or perhaps the second year, 

 but afterwards refusing to renovate its fronds, from some inex- 

 plicable cause. A compost, consisting of chips of micaceous 

 rocks, sand, peat, and a slight admixture of thoroughly decayed 

 leaf-mould, seems best adapted to its requirements : it also 

 needs good drainage, and likes to be covered with a bell glass. 

 When successfully grown it is a very pretty plant, but I regret 

 to say that its usual appearance is shabby and ill-conditioned. 

 The next species is readily cultivated on brick walls, amongst 

 stones, or on an ordinary rockery : it prefers a northern aspect. 



