AX CKOOLOGICAT. PROBLEM. 231 



head of the Truchill and around the Lochans of Achlarich give 

 much interesting material in forms of Carex, but few other 

 flowers. Then we come to Beinn Heasgarnich. where, in its 

 finely sheltered and well watered corrie, we have every right to 

 expect a very fine collection of alpine plants, but except for that 

 form like Cerastium trigi/num and Carex ustulata, and some 

 interesting Carices and grasses, this mountain is very poor in rare 

 alpine plants. Meall Tionail offers no foothold for plants, but 

 when we come to the corries of Creag Mhor, here again we find 

 the rarer alpines in great profusion, none, it is true, of those 

 classed extremely rare, but many very rare forms notwith- 

 standing. We miss Draba rupestris, Arenaria sulcata, Saxijraga 

 rivularis, Erigeron alpinus, Gentiana nivalis, and Myosotis 

 alpestris, but we have many others to take their places, which 

 may still be found on Ben Lawers, though their situation 

 is only known to a few, whereas on this mountain you cannot fail 

 to find them. Bartsia alpina occurs here for the first time on 

 this range. Dryas octopetala is plentiful, Salix is well represented, 

 and many new forms met with here also for the first time on this 

 range. Woodsia hyperborea and Cystopteris montana are common 

 plants, carex and grass forms are abundant, and, owing to its 

 difficulty of access, the Hieracia are still abundant on the rocks. 

 Suppose we take that chain of mountains lying between Glen 

 Lochay and Glen Dochart, from Killin Hill to Beinn Chaluim. 

 On the I'ocks of Meall na Saone which are well watered, sheltered, 

 and at a good elevation, we look in vain for the very rare species 

 for which its corrie is noted. Here Cyatopteris montana was 

 first found by Donald Macgibbon, a Killin mason, and shown to 

 the late Professor Balfour, but we have not seen even a frond of 

 of it on the range for years now, and feel confident it is extinct. 

 A remnant of Salix lanata is still to be seen here, and here 

 Bartsia alpina has its most easterly limit. The commoner alpine 

 plants are plentiful, but, with the exception of Hieracium 

 holosericeum and Loiseleuria procumhens, which are common all 

 along the ridge, none is worthy of note. The same may be said 

 of the fine rocks of Sgiath Chrom and the whole of the ridge east 

 to Beinn Chaluim. The marshes of which this tract is composed 

 are very interesting, but, so far, I have discovered nothing of 

 any consequence in the way of flowering plants. Beinn Chaluim, 



