an Excursion to tlie Highlands in August 1830. 363 



Buird'; Glen of the Dole, Clova. From having a long while watched this 

 and v. Wonnskioldii in cultivation together, I am now satisfied that 

 they are specifically distinct, as I shall endeavour to show hereafter. 



In addition to the above enumeration of the more remarkable 

 plants observed, I may mention, that we saw several Salices, 

 wliich might be considered distinct, and new or scarce species, 

 but confessing great ignorance of this genus, I dare not give 

 names to very obvious differences of form. Among these was 

 probably S. rosmarinrfblia, one bush of which, without catkins, 

 was found by Dr Greville, scarcely rising above the heath, on 

 the side of a bog near the base of Loch-na-gar, towards the 

 Dee ; and one which Mr Macgillivray first picked in the corry 

 at the top of Glen Callader, which was afterwards found by se- 

 veral of the party there, and which he has described in this 

 Journal under the name of S. macnahiana. 



The few days of very hot weather in the end of July, after 

 the long continued rains, seemed to have produced a fresh blos- 

 som of Azalea procumbens, for we found much more of it in 

 flower than I had ever before seen in August. 



The following list of plants observed in the excursion is in- 

 serted, as it may possibly interest those who are not well ac- 

 quainted with the alpine vegetation of Scotland. They are found 

 on almost every range of considerable elevation. 



Aira alpina. Gnaphalium supinum. 



vivipara. Juncus trigluniis. 



Arbutus uva-ursi. JLuzula spicata. 



Aspidium Lonchitis. trifida. 



Asplenium viride. Oxyria reniformis. 



Azalea procumhens. Rhodiola rosea. 



Carex dioica. Saxlfraga aizoides. 



rigida. oppositifolia 



Cerastium latifolium. Saussurea alpina. 



Draba incana. Sibbaldia procumbens. 



Cornus suecica. Silene acaulis. 



Epilobium alpinum. Thalictrum alpinum. 



alsinifolium. Vaccinium uliginosuni. 



R. G. 



Description of a Species of Aira found on Loch-na-gar, in 

 Aberdeensliire. By Mr W. Macgillivray. 



A SPECIES of Aira, bearing some resemblance to A.flexuosa and 

 A. ccespitosa, having attracted my attention while examining the 



Aa 2 



