184 52. SOLANACE/E. 



736. Hyoscyamus niger, Linn. 



Area 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Ross, Banff, Aberdeen, Argyle. 



Estimate of provinces 17. Estimate of counties 70. 



Latitude 50 — 58. British type of distribution. 



Agrarian region. Inferagrarian — Superagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperature 52 — 47. 



Native. Viatical. As with various other plants which 

 fail to reach the northern coast of Scotland, the more 

 northerly habitats of the present species are of suspected 

 origin ; and taken together, the Scottish localities are suffi- 

 ciently few and far between, to give something of the 

 English character to the distribution of the species. 



Hyoscyamus albus, Linn. 



Area [11]. 



Incognit ? " H. albus is admitted by Withering into 

 his Arrangement, in consequence of specimens having 

 been gathered on the Sunderland ballast-hills, by Mr. E. 

 Robson ; upon similar grounds H. aureus, and fifty other 

 exotics, might have been inserted in this Catalogue." 

 (Winch, in Flo. N. D.) T presume it has become extinct 

 since the time of Robson .'' 



