730 Procoeding-^ of ihe Boyal Irinh Academy. 



In afldition to the alpine species already mentioned amongst the 

 Mweebea mountains, other local plants -were noticed in new localities, 

 and may be separately mentioned. There are Rubia peregrina, Scro- 

 phularia aqiiattca, Carex pallescens, C. filiformis, Lotus major, Erio- 

 caulon septangulare, Thalictrum minus, JJtricularia intermedia, Habenaria 

 fdbida, Sparganium miiiiimmi, Lycopodium clavafum, (Enanthe lachenalii, 

 CE. crocata, and Rulus saxatilis. 



On the south side of the vaUey of the Erriff, at the head of 

 Killary fiord, and north of Joyce's river, a range of mountain forms 

 the boundary between the counties Mayo and Galway. From Letter- 

 brickaim, a village and hill about half a-mile east of Leenane, this high 

 land extends, in a north-eastern direction, in a series of extensive 

 and remarkably level table-lands, with numerous small and barren 

 ponds and lakes, at an elevation of about 2000 feet for about six miles, 

 when it gradually subsides. These mountains are variously called — 

 Maumtrasna, Partry, and Letterbrickaun mountains, and the table-land 

 is, I believe, Formnamore table-land. They are chiefly composed of 

 sandstone and sandstone conglomerate, of carboniferous age, with 

 considerable areas of granite and gneiss. The table-land is a waste of 

 disintegrated conglomerate, and the whole chain is unusually bar- 

 ren. As on Croaghpatrick, Carex rigida is replaced by Carex Jlava. 

 I have also noticed this on the Galtee mountains in Tipperary. The 

 only alpine species observed were Salix herhacea, Juniperus fiana, and 

 the sub-alpine Hieracium anglicum. Aira alpina, an alpine form of 

 A. coespitosa, is abundant. 



The following notes were taken : — 



MAUMTEASIfA AND LeTTEEBEICKATN'. 



2150 feet. 

 Hieracium anglicum. 



2130 feet. 

 Eriophorum polystachyon. 



2120 feet. 



Antennaria dioica. 

 Solidago virgaurea. 

 Campanula rotundifolia. 

 Calluna vulgaris. 



Vaccinium myrtillus. 

 Juncus squarrosus. 

 tardus stricta. 

 Aira alpina (and at 2100). 



1850 feet. 



Stellaria uliginosa (and at 

 1750). 



Salix herhacea. 

 Carex flava. 



Lycopodium sclago. 



