82 ASPLENIUM RUTA-MURARIA. 



The 'wall-rue' Spleenwort, as this Fern is very aptly called, 

 is a common and widely-spread indigenous species, clothing old 

 walls with its small leaden-green fronds. Although so easily to 

 be procured, it is by no means an easy Fern to keep under 

 pot culture. 



An evergreen hardy Fern. 



Native of England, and found throughout the whole of Europe. 

 In India, Russia in Asia, Siberia, Algeria, and North America. 



Fronds glabrous, triangular in form, bipinnate, pinnules obo- 

 vate-cuneate, bluntly toothed on the margin. Fronds terminal, 

 adherent to a tufted rhizoma. 



Sori elongated, eventually becoming confluent, and covering 

 the whole under surface. Indusium fringed at the margin. 



Length of frond from two to five inches; colour a dull leaden 

 green. 



Mr. Moore describes seven varieties in his "Nature-printed 

 ns: 



1st. — Multifidum, Wollaston. 



2nd. — Cristatiim, Wollaston. 



3rd. — Proliferumy Wollaston 



4th. — Dissectum, Wollaston. 



5th. — Cuneatum, Moore. 



6th. — Pinnatum, Moore. 



7th. — Unilaterale, Moore. 



It is in all the Nurserymen's Catalogues. 



The illustration is from a plant in my own collection. 



Fer--" 



