50. GENTIANACE^. 177 



Estimate of provinces 10. Estimate of counties 40. 



Latitude 50 — 55. 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 51 — 48. 



Native. Pascual, Rupestral. Winch quotes Wallis as 

 the only authority for the occurrence of the Chlora in the 

 province of Tyne, and refers to Hutchinson, in like man- 

 ner, for that of the Lakes. Until verified by some good 

 botanist of our own day, it would seem better to reject the 

 two most northerly provinces of England ; difficult, though 

 it might be, to specify any other English plant as one 

 likely to be mistaken for the Chlora. 



SwERTiA PERENNis, Linn. 



Area [6 or 7]. 



Incognit. This has been recorded among British plants, 

 as having been found in Wales. Some mistake of the plant 

 is to be apprehended ; and it seems not very improbable 

 that luxuriant examples of Gentiana Pueumonanthe might 

 be thus misnamed. 



/V! //// C^/a '^2^- ViLLARSIA NYMPH^OIDES, Vent. 



Area * 2 3 4 5 * * (8 9 10 11 12 13 14 15). 

 South limit in Sussex, Berks, Gloucester. 

 North limit in Norfolk, Cambridge, Northampton. 

 Estimate of provinces 4. Estimate of counties 12. 

 Latitude 50 — 53. Germanic type of distribution. 

 Agrarian region. Inferagrarian zone. 



VOL. II. N 



