328 62. CHENOPODlACEiE. 



lands. I have not had the opportunity of proving (or of 

 sufficiently examining into) the differences alleged to exist 

 between the calyces of A. littoralis and A. marina, while 

 those between their leaves appear very unsatisfactory ; and 

 various botanical authorities have considered them only 

 forms of one single species. A. marina is reported from 

 the provinces of the Channel, Thames, and Tyne. 



925. Beta maritima, Linn. 



Area 1 2 3 4 5 6 7 * * 10 11 12 * 14 15 16 * 18. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Shetland, Orkney, ? 



Estimate of provinces 15. Estimate of counties 30. 



Latitude 50 — 61. British type of distribution. 



Agrarian region. Inferagrarian — Superagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends, at the coast level, to the North Isles. 



Range of mean annual temperature 52 — 45. 



Native. Littoral. Being already known in 29 counties, 

 the estimate of 30 may be rather too low for this species ; 

 but that of 40 might be as much too high. See the remark 

 on the county estimates between 30 and 70 for maritime 

 plants, under head of " 927. Schoberia maritima." 



926. Salsola Kali, Linn. 



Area 1 2 3 4 * 6 7 8 9 10 11 12 13 14 15 16. 

 South limit in Cornwall, Isle of Wight, Kent. 

 North limit in Moray, Aberdeen, Argj'le. 

 Estimate of provinces 15. Estimate of counties 40. 

 Latitude 50 — 58. British type of distribution. 



