ASPLENIUM. 133 



in a narrow fan-shaped manner, in eacli of the larger 

 pinnoe, the smaller ones having a proportionately less 

 number. Two or three linear sori are produced on a 

 pinna, and these are covered by membranous indusia, the 

 free margin of wliich is entire, or slightly sinuous, but not 

 jagged ; the sori at length become confluent. 



It grows, but very rarely, in Scotland, and in the Lake 

 district ; and is found, but with a limited range, in other 

 parts of Europe. 



This kind is not only rare, but one of those wliich does 

 not freely yield to artificial culture. It grows tolerably 

 freely if potted in sandy peat-soil well drained by an 

 admixture of rubbly matter, and kept under a bell-glass in 

 a shaded frame or greenhouse ; but the plants are very 

 liable to die in winter. The safeguard is, not to allow 

 any water to lodge about their crowns, nor to keep the 

 bell-glass too closely or too constantly over them, especially 

 in winter. 



This species is often named A. aUernifolium by British 

 authors ; but the name we have adopted claims precedence. 

 It has also been called Asplenium Breynii, Amesium 

 germanicum, and Scolopenclriwn aUernifolium. 



