692 Proceedings of the Royal Irish Academy. 



And five species common to both, islands, viz. : — 



Lepigomim rupicola. 

 Sedum anglicum. 

 Crithmum maritimum. 

 Scirpus savii. 

 Asplenium marinum. 



This is rather surprising; but it will be found that Watson's 

 Atlantic or western type is anomalously so-called in Ireland, being at 

 least as well represented on the eastern as on the western coast, so 

 that the insular floras reveal a somewhat unexpected truth. There 

 are, however, two highly interesting plants upon Inish-Bofin which, 

 do not fall under any of Watson's types, Selianthemum giittatum and 

 Saxifraga umbrosa. These and others of the so-called Hibernian type 

 which do not occur in Great Britain may be regarded as the extremest 

 group of the Atlantic type in the British Islands. 



AVith Higbland and northern plants Lambay is sparingly supplied, 

 two species of the latter alone being met with, while nine occur upon 

 Bofin. 



Lambay. Bofin. 



Parnassia palustris. Comarum palustre. 



Blysmus rufus. Lobelia dortmanna. 



Gentiana campestris. 



Pinguicula vulgaris. 



Empetrum nigrum. 



Juniperus nana. 



Eriocaulon septangulare. 



Sparganium affine. 



Isoetes echinospora. 



This, again, exemplifies the condition of things upon the mainland, 

 both these types being much better represented and descending lower 

 upon the west than upon the east coast of Ireland, and is due, no doubt, 

 to the damper and more equal climate. Most of the remaining species 

 peculiar to Bofin are more universally prevalent in the west than in 

 the east of Ireland, amongst which may be mentioned : — 



Bo FIN. 



Yiola palustris. 

 Achillea ptarmica. 

 Erica tetralix. 

 Myrica gale. 

 Litorella lacustris. 

 Callitrichu hamulata. 

 Ehynchospora alba. 

 Eleocharis multicaulis. 

 Osmunda regalis. 



