542 Proceedings of the Royal Irish Academy. 



Jimcus glaums (Ehr.) — Cavan and Fermanagh. Frequent. 



J. acutiflorus (Ekr.) — In marshy places throughout the district. 



J. squarrosus (Linn.) — Mountain heaths ; common. 



Lwmla sylvatica (Bich.) — Cavan and Fermanagh. !Not uncommon. 



L. campestris (Willd.) — Cavan and Fermanagh. Frequent. 



Alismace^. 

 Alisma plantago (Linn.) — Cavan and Fermanagh. Occurs occasionally. 



Ttphace^. 



Triglochin palustre (Lion.) — Cavan and Fermanagh. In wet places at 

 Carrick, &c. 



A.'&k.C'EM. 



Arum maculatum (Linn.) — Cavan and Fermanagh. Common. 



Lemkace^. 

 Lemna minor (Linn.) — Cavan and Fermanagh. Common. 



POTAMOGETONACE^. 



Potamogeton nutans (Lian.) — Lakes and ponds ; frequent. 



P. rufeseens (Schrad.) — Carrick Lake, Co. Fermanagh ; rare. 



P. zi%ii — Yery sparingly in slow stream which connects Carrick 

 Lake with Bunnahone Lake, near Derrygonnelly, Co. Fer- 

 managh. I am obliged to Mr. Bennett, of Croydon, who 

 pointed out that my plant agrees in all respects with Eoth's 

 plant ; a judgment since confirmed by Professor Babington. 



P. pectinatus (Linn.) — Carrick Lake, Co. Fermanagh. Not common. 



Cypeeace^. 



Eleocharis palustris (E. Br.) — Common everywhere. 



Scirpus lacustris (Linn.) — Cavan and Fermanagh. In the lakes ; 



frequent. 

 8. ccespiiosus (Linn.) — Common on the mountains. 

 S. setaceous (Linn.) — Drumbad, Co. Fermanagh. Not common. 

 Priophorum angustifolium (Eoth.) — Bogs and heaths ; common. 

 Carex pulicaris (Linn.) — Knockmore, &c. ; not very common. 

 C. stellulata (Good.) — Cavan and Fermanagh. Common on grassy 



heaths. 

 C. remota (Linn.) — Marble Arch, Co. Fermanagh. Not common. 

 C. ovalis (Grood.) — Cavan and Fermanagh. Frequent. 

 C. vulgaris (Fries.) — Cavan and Fermanagh. Common. 

 C. pallescens (Lam.) — On Cuilceagh, BinaghHn, and neighbouring 



mountains, up to 1200 feet; but not common. 

 C. panicea (Linn.) — Cavan and Fermanagh. Frequent. 

 C. pendula (Huds.) — Marble Arch, Co. Fermanagh. Yery rare. 



