ASPLENIUM RUTA-MURARIA. 





Pinnules obovatc or rlioniboidal, their base cnneate, and their 

 apex minutely dentate. 



Veins repeatedly forked from the base. 



Stipes long, smooth, and purple at the base. 



Rachis smooth and green. 



Caudcx brief, tufted, and scaly. 



Sori linear. 



An evergreen Fern. 



There are a foAv varieties: — 



Fig. 586. — Upper portion. 



Fig. 587.— Upper portion. 



E.AMO-DEPAUPERATUM, ClcrpliaiTi. (Fig. 586.) — Found at 

 Settle, by Mr. A. Clapham, of Ramsdale Bank, Scarborough. 

 A branched and depauperate form. Stipes exceedingly long. 

 Pinnpc very various in size and form. My thanks are due to 

 Mr. Clapham for fronds. 



Attenuatum, Loice. (Fig. 587.) — An unusually large-growing 

 form, found in March, 1863, at Athlone, by Mr. F. J. Foot, 

 of the Geological Survey of Ireland, and named attenuatum by 

 the suggestion of the discoverer. Fronds from five to six inches 



