536 Proceedings of the Royal Irish Academy. 



Ruhus idaus (Linn.) — Limestone rocks at Knockmore; but not common. 



R. discolor (W. and N.) — Abundant. This is the common bramble of 

 the district. 



R. Tcoehleri ("Weihe.) — Frequent throughout the district. 



R. emersistylus (MulL)=i2. Iriggsii (Blox.) — Specimens which I gathered 

 near Derrygonnelly, Co. Fermanagh, were submitted by my 

 friend Mr. T. H. Corry, M.E.I.A., &c., to Professor Babington, 

 who kindly examined them, and, as the result of his diagnosis, 

 informs us that he thinks them to belong to R. Iriggsii. It is un- 

 fortunate that a suite of specimens sufficient to place the species 

 beyond doubt was not collected. Brambles are sufficiently abun- 

 dant in the district, but with less than the usual diversity of 

 forms. 



Dryads octopetala (Linn.) — Abundant in one spot on the summit of the 

 limestone cliiis of Xnockmore, at the western end. This plant is 

 evidently the var. a., and is the same form as that which occurs 

 on Ben Bulben, having the sepals beset with red glandular hairs. 



Geum urhanum (Jjinn.) — Cavan and Fermanagh. Hedge banks; but 

 not abundant. 



G. rivale (Linn.) — Cavan and Fermanagh. Frequent on margins of 

 streams. 



Rosa tomentosa (Sm.) — Cavan and Fermanagh. Common. 



R. canina (Linn.) — Cavan and Fermanagh. Common. 



R. arvensis (Huds.) — Co. Fermanagh. Sparingly near Florence Court, 

 on old road leading to Swanlinbar. 



Cratmgus oxyacantha (Linn.) — Cavan and Fermanagh, Common. 



Pyrus aucvparia (Gaert.) — Carrick and Drumbad, Co. Fermanagh. 



Onagkace^. 



Ppilolium parviflorum (Schreb.) — Cavan and Fermanagh. Common. 

 E. montanmn (Linn.) — Cavan and Fermanagh. But less plentifully 



than the preceding species. 

 Circma lutetiana (Linn.) — Marble Arch, &c., Co. Fermanagh. 



Haxoeagace^. 

 Myriophyllum alternijiorum (D, C.) — Carrick Lake, Co. Fermanagh. 



PORTITLACE^. 



Montia fontanel (Linn.) — Cavan and Fermanagh. Frequent in wet 

 stony places. 



Ceasshlace^. 

 Cotyledon umbilicus (D.C.) — Co. Fermanagh. On rocks at Carrick. 



Saxtpbagace^. 



Saxifraga hypnoides (Linn.) — Knockmore, Co. Fermanagh. 

 Chrysosplenium oppositifolium (Linn.) — Cavan and Fermanagh. Fre- 

 quent on wet rocks. 



