A SPLENIUM. 



531 



is wedge-shaped. The long and very narrow sori (spore masses) are disposed 

 in an oblique line on each side of the rnidvein. — Hooker, Species Filicum, 

 iii., p. 159. Nicholson, Dictionary of Gardening, i., p. 129. Lowe, Ferns 

 British and Exotic, v., t. 13. 



Fig. 89. Pinned of two Fronds of Asplenium dimorphum, showing different forms 



(a, J nat. size ; b, nat. size). 



A. (Darea) dimorphum — Da'-re-a ; dim-orph'-uin (two -formed), Kunze. 



This very handsome, greenhouse Fern, native of Norfolk Island, is 

 undoubtedly one of the most elegant of the whole genus, and is also known 

 in commerce under the names of A. biforme and A. diversifolium. These 



