108 • 3. PAPAVERACE^. 



and yet so constantly in the neighbourhood of old houses, 

 gardens, orchards and other suspected places, that we can 

 scarcely receive it for a genuine native. In Scotland, it is 

 rather an alien than even a denizen ; but I have ventured 

 to make it an estabhshed plant northward to the Clyde 

 and Forth ; being somewhat less rigid with respect* to spe- 

 cies entered simply as denizens, than in the cases of spe- 

 cies which are allowed to be native in some part of Bri- 

 tain. Of these latter, I give as nearly as possible the native 

 limits. 



46. Glaucium luteum. Scop. 



Area 1 2 3 4 5 6 7 -;,, 9 10 11 12 13 14 15 16 * (18). 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Fife, Dumbarton, Argyleshires. 

 .Estimate of provinces 16. Estimate of counties 30. 



Latitude 50 — 57. British (.?) type of distribution. 



Agrarian region. Inferagrarian — Midagrarian zone. 



Descends to the coast level, in the Peninsula. 



Ascends, at the coast level, to the West Highlands. 



Range of mean annual temperature 52 — 48. 



Native. Littoral. Frequent on the coast of England, 

 but decreasing so much northward, that it might almost as 

 truly be referred to the English, as to the British type of 

 distribution. While there appear to be no other ascertained 

 localities more north than the shores of the Forth and 

 Clyde, I have hesitated to receive the Shetland Flora as a 

 sufficient authority for this plant being indigenous in the 

 North Isles. The maritime plants of the Trent province 

 being simply those of Lincolnshire, for which we possess 

 no satisfactory floral catalogue, I have thought it more pro- 

 bable that the Glaucium luteum does occur in that province, 



