WRIGHT ON THE FLORA OF THE ISLANDS OF ARRAN. 103 



R. obtusifolius (Linn.) 



E. acetosella (Linn.) 



Polygonum amphibium (Linn.), wet places to the west of Inishmore. 



Euphorbia paralias (Linn.), growing in profusion on the Trawnmore 

 sand banks. 



E. peplus (Linn.) 



Callitriche verna(Linn.), growing on borders of wet ground with Litto- 

 rella lacustris. 



Parietaria officinalis (Linn.) 



Urtica urens (Linn.), only met with in the immediate neighbourhood of 

 Kilronan. 



XL dioica (Linn.) 



Humulus lupulus (Linn.), near the ruins of Templebrecan. 



Juniperus communis (Linn.), common over the hilly district of Inish- 

 more. 



Orchis pyramidalis (Linn.) 



0. mascula (Linn.) 



Gymnadenia conopsea (R. Br.), very common on Inishmore. 



Habenaria viridis (R. Br.). On the limestone district of Arran this 

 species is not rare. 



Spiranthes autumnalis (Rich.) 



Allium babingtonii (Bor.). This species is to be met with very gene- 

 rally in all the islands. In Inishmore it will be easily found at 

 Eararna, to the south-east, and at Ourtnagapple in the west. 



Lemna minor (Linn.) 



It is not of course to be supposed that this list gives the names of 

 all the species to be met with on the Islands of Arran. A residence of 

 some seven or eight months on the islands, or frequent visits to them 

 during some such period, would be requisite to enable one to do this 

 with anything like completeness ; but I believe it to be a list of all, or 

 almost all, the species to be met with in the month of August, and it is 

 sufficient to enable one to compare the Elora of this group of islands 

 with that of the opposite mainlands. These mainlands are— first, that of 

 the Connemara district, in the county of Galway ; and, secondly, that of 

 the Burren district in the county of Clare. The former of these districts is 

 the south-west portion of District 8, of Professor 0. C. Babington,* and 

 the latter is portion of the western part of District 6. At first sight it 

 might not be thought possible, to say to which of these two districts the 

 Arranlslands belonged ; but, on examination, the general affinity of the 

 Elora is seen to be to that of the Clare rather than to that of the Galway 

 coast ; so that Arran may be regarded as but the extension of Clare, at 

 least from a geological point of view. 



* " Proceedings of the Dublin University Zoological and Botanical Association," 

 vol. i., p. 246, and " Cybele Hibernica," by Dr. Moore and A. G. More, 1866, p. xxxu 



