70 BRITISH FERNS. 
crumbled and sifted mortar from old walls, and light 
friable loam: the pan being partially filled with this 
mixture, the creeping caudex should be carefully 
arranged on the surface, and then covered with the 
part of the green-house, and no shelter of any kind 
Placed over or around the fern, 
10. WILSON’s FERN. Myrrumrrorium. 
Polypodium Myrrhidifolium, Villars. 
Polypodium montanum, Link. B. F. 97. 
_ (NoteWhen I had the pleasure of adding this 
Species to the British Flora, I adopted the name 
assigned to it by Link, Koch, Presl and Fries, and 
Or i : prior 
names is now almost universal in Zoology : Tcan only 
