374 Notice of Plants observed in an Excursion 



showers. The following is a list of the more important plants 

 observed ; the whole route abounds in the ordinary alpine^ve- 

 getation of the Scottish mountains. 



Ajuga alpina Stream falling into "White Water, Clova, above the Falls. 



Dr Hooker states, on the authority of Mr D. IDon, that this is not un- 

 common in Aberdeenshire, but he himself never saw a British specimen, 

 and this is the first time I ever gathered it. I found only two speci- 

 mens. 



Alopecurus alpinus — This very rare grass was first observed by iMr Hewett 

 AVatson on the sides of a sti'eam leading from the South into the White 

 Water, above the Falls. On following uj) the stream, we observed it 

 in great plenty, and it was afterwards found scattered along the course 

 of the White Water nearly to its source, and on various streams falling 

 over the ridge above Glen Callader. I had never before seen it except- 

 ing at Loch NVhorol, the station alluded to by Dr Hooker in his British 

 Flora. 



Apargia Taraxaci — White Water, Clova. We found also on the White 

 Water the form considered on the Continent as A. alpina, which I had 

 never observed except in Sutherlandshire, and a remarkable variety in 

 which the hairs of the involucrum were yellow. 



Azalea procumhcns. — This is a very common plant on Scottish moimtains ; 

 but Mr Macnab found on the top of the mountain forming the south 

 boundary of the valley of Clova, the larger variety with more loose habit, 

 which is in cultivation from America. 



Career atrata. — Sparingly on a cliff south side of Glen of Dole, Clova. 



Carex rariflora. — In the old station in Clova. ]Mr Watson and Dr Macfar- 

 lane also found it on high ground about two miles to the south-west of 

 this. 



Carer Vahlii. — This was found in much larger quantity than last year, but 

 only on the same station, from top to bottom of a high clift', but ex- 

 tending only a few feet laterally, at the top of Glen Callader. 



Eleocharis muUicaulis. — Gathered by Dr Greville in abundance in a bog be- 

 hind the Invercauld Arms, Castleton. 



Epilohium alsinifolium. — This, though less common than E. alpinum, is still 

 by no means rare in the alpine districts of Scotland. Perfectly distinct 

 as the extremes of this and Epilobium alpinum are, I picked specimens in 

 several parts of our route which I find it difficult to distinguish from 

 either. 



Erigeron alpinum. — In considerable quantity on cliffs south side of Glen of 

 Dole, Clova. 



Galium pusillum. — Stony bank, south side of Glen of Dole, Clova. 



Jzmcus castaneus. — In considerable quantity, especially along the upper 

 part of the AVhite Water, and in the streams leading over the edge of 

 the cliffs in Glen Callader. 



Jvncus triglumis This is a very frequent plant in alpine districts. Be- 



sides the equal elevation of its flowers, it is generally at first sight dis- 

 tinguished from J. biglumis by these overtopping the bractese; but I found 

 near the source of the White Water several specimens in which the brac- 

 tea is as long as in J. biglumis. The same variety I have from Feroe, 

 through the kindness of Mr Trevelyan. 



Linncea borealis. — Gathered in flower by Mr Brand and Mr Barry at the 

 very edge of the precipice overhanging the soutli side of the White Wa- 

 ter, growing among short Vaccinia. 



Malaxis paludosa — A single specimen was picked by Di' Greville on the side 

 of the hill above the village of Kirkton, Clova. 



