544 Proceedings of the Royal Irish Academy. 



E. syhaticum (Linn.) — Cavan and Fermanagh. Not uncommon. 



-E". limosum (Linn.) — Abundant everywhere. 



E, palustre (Linn.) — Cavan and Fermanagh. Common. 



FlLICES. 



Polypodium vulgar e (Linn.) — Cavan and Fermanagh. Common. 



Lastrea filix-mas (PresL) — Common everywhere. 



L. dilatata (Presl.) — Common everywhere. 



L. cemula (Brack.) — Co. Fermanagh, Carrick and Drumbad. Beside 

 rocky banks of streams. 



Polystichum aculeatwn (Both.) — Cavan and Fermanagh. Not un- 

 common on the hills. 



P. angular e (Newm.) — Common everywhere. 



Cystopteris fragilis (Bernh.) — Cavan and Fermanagh. On damp 

 rocks ; common. 



Yar. h. dentata (Sm.) — Frequent ; along with the preceding. 



Athyrium fiUx-foemina (Both.) — Cavan and Fermanagh. Frequent. 



Asple?nwm adiantum-nigrum (Linn.) — Cavan and Fermanagh ; but 

 not abundant. 



A. trichomanes (Linn.) — Everywhere common on shady rocks. 



A. ruta-muraria (Linn.) — On walls and dry rocks; abundant every- 

 where. 



Scolopendrum vulgare (Sym.) — Common everywhere. 



Blechnwm loreale (Sw.) — Common everywhere. 



Pteris aquilina (Linn.) — On dry heaths ; everywhere. 



Symenophyllum ivilsoni (Hook.) — Knockmore, Drumbad, Cuilceagh, 

 &c. Frequent in Cavan and Fermanagh. 



Osmunda regalis (Linn.) — Carrick and Drumbad, Co. Fermanagh. 

 Abundant and luxuriant by the streams. 



Ltcopobiace^. 



Lycopodium selago (Linn.) — Cavan and Fermanagh. In great profusion 



on the mountains. 

 Selaginella spimdosa (A. Br.) — Damp shady rocks, Knockmore, and 



Drumbad, Co. Fermanagh ; sparingly. 



Chaeaceje. 

 Cha^a aspera (Willd.) — Carrick Lake, Co. Fermanagh. 



