176 60. GENTIANACE.E. 



species ; the one being the narrow-leaved E. linarifolia ; 

 the other, a dwarf variety of E. Centaurium, with leaves 

 more or less elliptic. I am quite unprepared to separate 

 their recorded localities ; and I still incline to the belief, 

 although without any confident conviction, that both forms 

 are truly varieties of E. Centaurium. 



724, c. Erythr^a PDLCHELLA, " i^nes." ^t '^•'^^^■/.A^ 



Area 1234*67*9 10** 13 [14]. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Dumfries-, Lancaster, York. 



Estimate of provinces 10. Estimate of counties 25. 



Latitude 50 — 55. English type of distribution. 



Agrarian region. Inferagrarian — Midagrariau 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. Pascual, Glareal. This looks more like a dis- 

 tinct species, than either E. littoralis or E. latifolia ; and 

 yet I have seen occasional examples of E. Centaurium 

 approximating so closely to those of E. pulchella, as to 

 interfere much with any settled conviction of their specific 

 distinctness. Perhaps some few of the littoral localities 

 reported for the present plant, may belong really to the 

 dwarf form mentioned under E. littoralis. 



725. Chlora perfoliata, Linn. 



Area 1 2 3 4 5 6 7 8 9 10 [11 12]. 



South limit in Devon, Isle of Wight, Kent. 



North limit in'York, Lancaster. 



