404 



var. /3. pumila, Festuca ovhia, var. s. vivipara, and Lycopodiura 

 Selago. On descending into Glen Rosa we picked Drosera anglica, 

 Lylhrum Salicaria, Molinia ca^rulea, var. l3. alpina, Rhynchospora al- 

 ba, Galeopsis versicolor, Habenaria bifolia and chlorantha and Vacci- 

 nium Vitis-Idgea. On the sea-sliore near the inn we also gathered 

 Sagina maritima and Eryngium maritimum. 



With the view of examining the Flora of the alpine districts, we 

 made an excursion in July to the mountains on the shores of Loch 

 Lomond. Leaving Glasgow at 4, P.M., we reached Tarbet in the 

 evening. Here we took up our residence for two days, and made ex- 

 cursions in the neighbourhood. On the first day we proceeded along 

 the shores of Loch Lomond, as far as the Sloy water; we then as- 

 cended the stream to Loch Sloy, and thence commenced our ascent 

 of Ben Voirlich, a high hill near the head of Loch Lomond. On the 

 shores of the Loch we picked Osmunda regahs and Hymenophyllum 

 Tunbridgense and Wilsoni, Hypericum Androssemum and Betula al- 

 ba and glutinosa. In Loch Sloy, Lobelia Dortmanna, Littorella la- 

 custris and Subularia aquatica were seen. On Ben Voirlich the alpine 

 plants collected were Alchimilla alpina, Silene acaulis, Sibbaldia pro- 

 cumbensj Cerastium alpinum, J uncus trifidus and triglumis, Saussurea 

 alpina, Gnaphalium supinum, Hieracium alpinum, Saxifraga aizoides, 

 stellaris, hypnoides and nivalis, Carex rigida, Polystichum Lonchitis, 

 Sedum Rhodiola, Polygonum viviparum, Poa alpina, and a new Poa, 

 called by Dr. Parnell P. Balfouri, Aira alpina and var. vivipara, Fes- 

 tuca ovina, var. e. vivipara, Epilobium alpinum and Thalictrum alpi- 

 num. Carex saxatilis was gathered in great profusion on the descent 

 of the hill towards the head of Loch Lomond. On the second day 

 Ben Lomond was visited, and on it, besides most of the alpine 

 plants already noticed on Ben Voirlich, we saw Rubus suberectus and 

 Chamsemorus, Scutellaria galericulata, Salix arenaria and Asplenium 

 viride. 



On the shores of Loch Lomond we particularly remarked the great 

 quantity of fruit produced this season, by the ordinary trees, as birch, 

 beech, oak, alder, hazel, apple, holly, &c. 



J. H. Balfour. 

 Glasgow, November 11, 1842. 



