358 69. euphorbiacEjE. 



was noticed in Yorkshire so long ago as the time of Ray ; 

 but would seem not to have become permanently esta- 

 blished there. Winch deems it introduced likewise to the 

 only habitat mentioned in the Flora of Northumberland 

 and Durham, which was by a mill. Not unlikely intro- 

 duced to England at first through agriculture ; but it is 

 now so well established in the southern counties, as to 

 have lost the character of an alien. Euphoi'bia verrucosa 

 of Hudson, not of continental botanists, belongs to this 

 species, in form of E. stricta of Smith. 



963*. Euphorbia stricta, ''Koch" ^ ^'^^^^J-S^tf^ 



Area ^^ * ^^ * 5. 



South limit in Monmouth. 



North limit in the same county. 



Estimate of provinces 1. Estimate of counties 1. 



Latitude 51 — 52. Local (Engl.) type of distribution. 



Agrarian region. Inferagrarian zone. 



Descends to } 



Ascends to ? (Altitude trifling ?) 



Range of mean annual temperature, say 49. 



Native. Sylvestral. Found "in woods below the Wind 

 CliflF and near Tintern, Monmouthshire ;" which, so far as 

 yet ascertained, is the only county that produces this spe- 

 cies, apparently quite distinct from the corn-field plant, 

 figured under name of E. stricta in English Botany, 333. 

 It is injudicious to appropriate the name "stricta" to this 

 plant, as the doing so can scarcely fail to induce confusion | 



and error, consequent on applying the same name to two 

 different things. 



