24 41. RUBIACEiE. — 42. VALERIANACE^E. 



English plants, even as an introduced species ; its locali- 

 ties appearing to be transitory and uncertain. Reported 

 to have occurred in Devon, Herts, York ; in the latter 

 county on no better authority than that of Mr. Samuel 

 Gibson. 



528. ASPERULA CYNANCHICA, Linn. 



Area 1 2 3 4 5 6 * * 9 10 * 12. 



South limit in Devon, Isle of Wight, Kent. 



North limit in Westmoreland, York. 



Estimate of provinces 9. Estimate of counties 25. 



Latitude 50 — 55. English type of distribution. 



Agrarian region. Inferagrarian — Midagrarian zones. 



Descends to the coast level, in the South of England. 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperature 51 — 47. 



Native. Rupestral .? The term used does not very well 

 express the local situations of this species, " on chalky 

 banks ; " but whether any other in the series, as glareal or 

 pascual, would be nearer, I cannot say, being very little fa- 

 miliar with its localities. 



529. Centranthus ruber, BC.'^ M ^^^ .}..t<^ 



Area (12345678|l0 11** 14). 



Alien. More or less naturalized in some 20 to 25 coun- 

 ties, which are spread through many of the provinces, as is 

 shown above ; but the more northerly locdities are rather 

 planted than spontaneous, as some of the southern habitats 

 appear to be, which take their origin from the seeds having 

 been carried by the vvmds into chalk-pits, and such like 

 places. 



