186 FILICES. 



CYSTOPTERXS Bernhardt. Bladder Fern. 



1. C. fragilis {Linn.) Bernh. 



Damp shady rocks and walls —rare, but frequently abundant where it 

 does occur. 



Down — Mountain above Tollymore Park ; Flor. Ulst. Slieve Donard ; 

 JJr. Dickie. Rademon demesne, Shanslieve, and Mountain 

 west of SHeve Donard ; R.Ll.P. 

 Antrim — Rocks by the waterfall in Carrickfergus River ; Templcton, 1811. 

 SaUagh Braes; Flor. Ulst. Glenariffe; B.N.F.C., 1866. 

 Walls of Retreat Castle ; T.H.C. Glenarm deerpark, Trostan 

 Mountain, and Murlough, also plentiful by the roadside near 

 Retreat rail, station ; R.Ll.P. 

 Derry— Sparingly on rocks by the Roe above Limavady ; D.M. 



The variety, C. dextata Smith is recorded as occuring at Woodburn, 

 but cannot be found now. 



ATHVRZUnX Both. 



1. A. filix-foemlna (Linn.) Both. Lady Fern. 

 By streams, and in wet places —common. The variety rhoeticuin is 

 frequent. 



ASPXiETTZUM Finn. Spleenwort. 



1. A. adiantum-nigrum Finn. Black Spleenwort. 

 Damp shady rocks— frequent, less common on banks and old walls. 

 Down — Moume Mountains ; JFade Bar. Holywood, and Castlereagh ; 

 Flor. Belf. Crawfordsbum, and Copeland Isles ; Flor. Ulst. 

 Walls at Portavo ; T.H.C. Mealough Hill, and walls between 

 Greencastle and Rostrevor — occurs on slate rocks of Moiune, 

 but seems not to ascend to the granite ; S.A.S. Crossgar, 

 Bryansford, and AVaiTcnpoint ; R.Ll.P. 

 Antrim — CoKn Glen ; Flor. Belf. Wolfhill, Cave Hill, BallycaiTy, and 

 clifPs at Glenarm ; Flor. Ulst. On the Knockagh, and extends 

 all along the basaltic escarpment of the coast line, frequent in 

 Rathlin; S.A.S. Dunadiy, Cushendall, and Portrush ; 

 R.Ll.P. 

 Derry — Common in many places, ascending to 1600 feet on the mountains ; 

 D.M. Lignapeiste Glen, walls of Banagher old church, and 

 rocks of Benbradagh, and Benevenagh ; S.A.S. Do-s^Tihill, 

 and Castlerock ; R.Ll.P. 

 Var. /3 A. AcrTUM Bory. 

 Damp shady rocks and banks— very rare. 



