'218 53. SCROPHULARIACE^. 



counties, and its apparent absence from the most westerly, 

 as those of Wales, with the exception of Glamorgan, give 

 it much approximation to the Germanic type. In the 

 province of Tyne, according to the Flora by Winch, it is 

 only a plant of the ballast-hills. In that of Humber, the 

 Rev. Archdeacon Pierson was stated (B. G.) to have found 

 the species near Malton ; but it is not admitted into 

 Baines's Flora of Yorkshire. In that of Trent, some very 

 few localities have been mentioned in Nottinghamshire. 

 The chief prevalence of the species would seem to be in 

 the provinces of Channel, Thames, and Ouse. 



783. LiNARiA Elatine, Linn. '^ '^^ /^ -^yj 



Areal 2 3 4 5 6 7 8^9^:10(11). 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in York, Auglesea, Norfolk. ^'^^ ^ 



Estimate of provinces 9. Estimate of counties 40. 



Latitude 50 — 54. English type of distribution. 



Agrarian region. Inferagrarian — Midagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperature 52 — 48. 



Native. Agrestal. With nearly the same distribution 

 as L. spuria otherwise, this extends so much more gene- 

 rally into the western counties, as to come clearly within 

 the idea of the English or the southern type. Perhaps the 

 estimate of 40 counties may overshoot the truth, but it is 

 likely that 30 might be as much below. As it occurs only | 



on ballast-hills in the province of Tyne, its northern limit 

 is here placed in Yorkshire. 



