NOTES ON THE FLORA OF BEN LAIOGH, ETC. 805 



and continue in Argylesliire by the Eas Daimh burn for two or 

 three miles, bending round in a south-western direction, when they 

 again diminish in size, and eventually disappear under a slope 

 covered up with moraine, which leads up into the great Argyll 

 corrie on the west side of the mountain (corresponding to the 

 similar Perth corrie on the eastern side). A short mile south- 

 ward this line of calcareous cliffs again appears, but here 

 not so rich in characteristic vegetation as the cliffs above the 

 Coninish and Eas Daimh burns, to which I shall later on draw 

 particular attention. Erom the burns to the cliffs are grassy 

 slopes, and above the limestone cliffs again is a widish green slope, 

 then a range of quartz-schist cliffs, then again calcareous cliffs, 

 topped finally by a mass of quartz-schist. At about 2500 ft. on 

 the north side is a small corrie with numerous springs at its base, 

 principally draining into the Coninish burn ; the western border of 

 this small corrie is a ridge which forms the county boundary, the 

 great Argyll corrie being situated on its south-western side, and is 

 large and open, barren and stony, without a tarn, and in its upper 

 portions free from springs. Lower down in the gap (on this side 

 much wider), between the calcareous cliffs, great heaps of moraine, 

 already alluded to, obscure the geologic features, but form a moor- 

 land, boggy in j)laces, whose peculiar plants are Oarex pauciflora, 

 C* xanthocarpa, C. fulva, Drosera anylica, D. obovata, and Malaxii 

 paludosa. 



The flora of the mountain is therefore separable into several 

 zones: firstly, the moorland up to 1200 ft., whose typical features 

 are the plants last noticed, in addition to the ordinary moorland 

 vegetation of Erica Tetralir, E. cinerea, Callttna, Myrica, Molinia, 



Carex binervis, G. flaca, C. eckinata, Xarthecium, Drosera, &c. 



Secondly, the vegetation of the calcareous cliffs (the occurrence of 

 which, as I have pointed out, is such an important factor), and this 

 is of a singularly rich and attractive character, consisting as it does 



of plants such as Dryas, Draba incana, Pyrola rotundifolia, P. 

 secunda, Saumtrea, Bartsia alpina, Salix Arbuscula, S. Myrdnites f 

 Carex atrata, C. vayinata, Juncus castaneus, Arabis petrcea, Arena 

 alpina, SaHfraqa quinquejida, S. nivalis, &c. 



Then, thirdly, the higher grassy slopes which yield abundance 



of Carex saxatilis, C. capillaris, C. echinata, Juncus castaneus, J. 

 triylumis, Epilobium ana<iaUidifolium, Veronica humifusa. 



And, fourthly, the higher cliffs and topmost comes, which have 



Cerastiuni alpinum, Arabis petwa, Saxifraya 7iicalis, S. hypnoides, Poa 



alpina, Detehampria alpina, D. montana, Armaria sedoidcs, &c. 



I spent three days on the mountain ; the first, characterised by 

 rain and mist, was occupied in working from Tyndrum over the 

 Moorland and ascending by the waterfall to the Perthshire corrie, 

 climbing in dense mist the face of the steep central cliff to the 

 summit and then crossing into the Argyll corrie, passing over into 

 the small high Perth corrie, and working the higher limestone chfls 

 i-ound the Stob Garb at about 2700 ft., into the large Perth corrie, 

 whose southern side was again investigated, as well as the low line 

 of cliffs stretching up Glen Laiogh. 



