Pethybridgk & 'PRAEGBR—Vegetafio}i South of Dublin, 179 



occasionally Uriophorum becomes abundant ; but the great bulk of 

 the ground above 1750 feet is in possession of a short, dense Callima 

 association, of which the following sample will illustrate the 

 whole : — 



Station 68. Kippuke, east slope. 2250 feet. 3. 10. '03. 

 Dry slope of short but luxuriant Calluna, with occasional bosses of 



Racomitrium. 



Calluna ytjlgaeis, c. 

 Yaccinium Myrtillus, f. 

 Empetrum nigrum, f. 

 Eriophorum angustifolium. 

 E. vaginatum. 

 Racomitrium lanuginosum. 



Juncus squarrosus. 

 Lastrea dilatata. 

 Melampyrum pratense. 

 Luzula maxima. 

 Scirpus csespitosus. 

 Cladonia rangiferina. 



In conclusion, we beg to return thanks to the Eoyal Society of 

 London, and to the Royal Irish Academy, for grants towards the 

 purchase of the necessary field-maps and other incidental expenses 

 connected with our survey. 



DESCRIPTION OF PLATES. 



Plate YII. 



Yiew looking north-west, from below the Military Road, at about 

 1000 feet. 



The distant hills are those of the ridge composed chiefly of basaltic 

 andesites, running in a north-westerly direction from Kippure to 

 Ballynascorney. The vegetation is too indistinct to be recognizable. 

 In the valley is seen one of the artificial lakes forming the Rathmincs 

 water-supply reservoirs. The hill on the right, in the middle distance, 

 is Piperstown Hill (1291 feet). Its summit is clothed with a dense 

 cap of pure though somewhat dwarf Calluna (C). Below this, and 

 extending down to the road on the left, and to the immediate fore- 

 ground, is Ulex Gallii ground (G.). The boulders are granite. Below 

 the road, on the left, is farm-land (A.) on drift. 



R.I. A. PROC, VOL. XXV., iSEC. B.] Q 



