204 12. CARYOPHYLLACE^. 



ature, therefore, this Silene would seem to descend within 

 the agrarian region, in Shetland, — doubtless enabled to 

 exist there in consequence of humidity and the low summer 

 temperature. It will even live and grow tolerably well in 

 the gardens of Surrey, exposed to the sun, if regularly 

 watered in dry weather. 



160. Lychnis alpina, Linn. 

 Jt^ iZ/f./Vf'-J,. 5 2/T 



Area ^^^^^^u-jjfjjf^^^u [12] * * 15. 



South and North limits in Forfarshire. 



Estimate of provinces 1. Estimate of counties 1. 



Latitude 56 — 57. Highland type of distribution. 



Arctic region. Midarctic zone. 



Descends ? 



Ascends ? (1000 yards ?) 



Range of mean annual temperature, say 37. 



Native. Rupestral. Discovered by the late G. Don, 

 "on the summits of the Clova Mountains, in 1795;" and 

 found by Dr. Graham and others, on the summit of a hill, 

 called Little Kilrannoch, between Glen Prosen and Glen 

 Callater. Dr. Graham estimated the hill at 3200 feet. It 

 was pointed out to me by a shepherd, from the head of 

 Canlochen Glen, and at that distance I thought it scarcely 

 above 3000 feet. Stated in the Phytologist (ii. 185) by 

 Mr. Richard Matthews, that a specimen of this species 

 was found at an elevation of 2000 feet, in a narrow and 

 deep ravine of Hobcartin Fell, a clay-slate mountain which 

 rises from the vale of Lorton, Cumberland. This station 

 will need to be confirmed. 



