77 



Ijicliens are not abundant, Peltialii being found on old walls, 

 and two species of Cenomyre on decaying vegetables. As a 

 matter of fact mosses and lichens are but little known or 

 examined and the study of them might elucidate facts unknown 

 here at present. 



Class IV: Cryptoyamia. 



Natural Order Filices. 



The ferns and fern life of these islands are so fully and ably 

 described in a bulletin of the Torrey Botanical Club, by Mr. 

 B. D. Gilbert, that to give another description here would be 

 only invidious. Consequentl3' the names and habitat are 

 simply given, with any special remarks called for. The princi- 

 pal fern localities are the marshes and the caves, and damp 

 walls or rocks. 



Adiantum Capillus Veneris — Walsingham district. Planted 

 out b}' Governor LefrO)'. It is not a native or indigenous, but 

 may from its spread be now counted as a naturalized species. 



Adiantum helium — A common fern, growing everywhere on 

 rock surfaces by the roadside and on garden walls. 



Adiantum bellum walsingense — A variety of the above but 

 much larger. Abundant near Walsingham. 



Pteris Ivongifolia — ^Jam. Uncertain whether it is a native or 

 naturalized. Crevices of walls and rocks round Hamilton. 



Pteris heterophylla — Open caves and cliffs of Walsingham. 

 It is known as the " parsley fern." Scarce. 



Pteris aquilina, var. caudata — Devonshire marsh. Very 

 luxuriant, growing from ten to twelve feet high. 



Woodwardia virginica — Pembroke marsh, and north side of 

 Devonshire marsh, plentiful in latter locality. 



Asplenium dentatum — Frequent on rocks at Walsingham. 



Asplenium Trichomanes — Common everywhere. 



Asplenium Myriophyllum — Rare, and liable to extinction. 

 Church Cave. 



