12. CARYOPHYLLACE^.. 231 



Agrarian region. Inferagrarian — Superagrarian zones. 



Descends to the coast level in England. 



Ascends to 100 yards, in Scotland. 



Range of mean annual temperature 50 — 46. 



Native. Glareal. In numerous localities, yet not at all 

 a common species. Its distributive type is intermediate 

 between three ; namely, the Germanic, English, and Bri- 

 tish. Its western localities of Denbighshire, Isle of Man, 

 and Dumfries, seem to remove it from the Germanic type ; 

 while its far northern stations, in Elgin and Nairn, are 

 equally against its assignment to the English type. Inter- 

 mediate betvreen the English and British types, by its 

 range of latitude, I have considered that its decided preva- 

 lence in the eastern, as compared with the western provin- 

 ces, may bring it still nearer to the Germanic type, It is 

 enumerated among the Orkney plants, by Barry or Lowe. 

 A remarkable variety, probably the C. strictum, has been 

 discovered in Ireland, by Mr. Andrews. 



196. Cekastium alpinum, Linn. 



Area ^ ***** 7 [8] * * * 12 * * 15 16 17.(r; ^ />f, ///. /. J^/ 



South limit in Caernarvonshire. 



North limit in Sutherland, (or Orkney ?) 



Estimate of provinces 5. Estimate of counties 12. 



Latitude 53 — 59. Highland type of distribution. 



Arctic region. Midarctic — Superarctic zones. 



Descends to 850 yards, or lower, in East Highlands. 



Ascends to 1300 yards, and upwards, in same province. 



Range of mean annual temperature 38 — 34. 



Native. Rupestral. On Snowdon, in Caeraarvonshire ; 

 on Helvellyn, in Cumberland ; and in most of the Highland 

 counties. If the C. tomentosum, of Barry's Orkney, is 



