24. ROSACEA. 365 



Descends to the coast level, in the Peninsula. 



Ascends to 500 yards, in North Wales. 



Range of mean annual temperature 52—44. 



Native. Septal, &c. By the agency of man and birds, 

 the Hawthorn is distributed plentifully through Britain, 

 even into Shetland ; but apparently not native in the 

 North Isles; and it is much more plentiful, in its wild 

 state, on the commons, &c., in England, than is the case 

 in Scotland. There is, or was, a bush of considerable 

 size, growing out of a rock above Killin, Perthshire, at 

 nearly 400 yards of elevation ; and small bushes were seen 

 at a greater altitude in Caernarvonshire. 



/"/^/J/.^.^^^, 361. COTONEASTER VULGARIS, Lindl. 



Area * ^ ^^ ^ ^j. * 7. 



South and North limits in Caernan'onshire. 



Estimate of provinces 1. Estimate of counties 1. 



Latitude 53 — 54. Local type of distribution. 



Agi'arian region. Midagrarian (?) zone. 

 ^ ^if}> /*• Descends — ? Ascends — } (100 or 200 yards .?) 



Range of mean annual temperature, say 48 — 47. 



Native. Rupestral. Hitherto recorded only from one 

 spot, the Great Ormes-head, a rocky promontory of the 

 Caernarvonshire coast. It is likely to be found also on 

 Penmaen Mawr, in the same county ; and if fouud there, 

 the circiuustance will fully confirm a suspicion which I 

 expressed long ago, that it was the Cotoneaster which Mr. 

 Griffith discovered on those two hills, and published under 

 the name of Salix reticulata. 



