Hart — Flora of the Mountains of Mayo and Galicay. 711 



the north-east corner it is about fifteen miles to Achill Head, the 

 western extremity, and about the same distance along Achill Sound to 

 Achill Beg Island on the extreme south. The base line from north- 

 west to south-east is curved far inwards, and the whole coast line 

 thoroughly " nook-shotten." The ferry by which the island is reached 

 lies about the middle of the eastern side of the island. It is hardly a 

 stone's throw across, and fordable at low water. From this point to 

 the missionary settlement on the northern coast of the island is about 

 ten miles, where comfortable quarters are available at Mr. Sheridan's 

 hotel, whose enthusiastic love for natural history, and ability and wil- 

 lingness to act as guide, add to the iaterest of a visit. The settlement 

 is situated at the eastern base of Slieve More, 2204 feet, the highest 

 poiat of Achill. This mountain slopes gradually to the sea. Soon, 

 however, the coast line rises again, becoming more and more precipi- 

 tous, till it finally culminates in the noble range of cliffs at Croghaun, 

 2192 feet, about five miles west of Slieve More. A day along these 

 higher parts of Achill gave the undermentioned results. The forma- 

 tion is quartzite chiefly, and the flora appears uninteresting. I searched 

 several likely places for the more remarkable west of Ireland plants ; 

 but, with the exception of London Pride and Maiden Hair fern, none 

 were met with. The discovery of the latter is not due to me ; but it 

 has not, I think, been previously recorded. As I had expected, the 

 alpine sedge and willow, so prevalent in the west, occur at suitable 

 heights on the quartzite of Achill. 



Slieve More (down East and Noeth-East). 

 2200 feet. 



Oxalis acetosella. 

 Yaccinium myrtillus. 



Armeria maritima. 

 Empetrum nigrum. 



Plantago maritima, &c 



2080 feet. 



Saxifraga stellaris. 



2030 feet (and upwards). 



Salix herbacea | Carex rigida 



1730 feet. 

 Saxifraga umbrosa (and up- 



wards) 

 Melampyrum pratense 



Pyrus aucuparia. 

 Sedum rhodiola. 



Solidago virgaurea. 

 Luzula sylvatica. 

 Carex flava. 

 Hymenophyllum unilaterale. 



1430 feet. 



Hieracium anglicum. 

 Asplenium trichomanes. 



Hymenophyllum tunbridgcnsc. 



R. I. A. PROC. SER. II., VOL. III. — .SCIENCE. 3 X 



