214 12. CARYOPHYLLACE^. 



172. Spergdla arvensis, Linn. 



Area, general. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Shetland, Orkney, Hebrides. 



Estimate of provinces 18. Estimate of counties 82. 



Latitude 50 — 61. British type of distribution. 



Agrarian region. Inferagrarian — Superagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 350 or 450 yards, in East Highlands. 



Range of mean annual temperature 52 — 42. 



Native. Agrestal. Very abundant throughout the cul- 

 tivated lands of Britain, and often seen profusely along the 

 sides of newly formed roads, as well on those of the waste 

 moors of Scotland, as on those in the richer lands of Eng- 

 land ; but the light, sandy or moory, soils appear best 

 adapted for its production. Dr. Dickie has found it so 

 high as 1386 feet, in Aberdeenshire, which exceeds the 

 highest spot in which it has been observed myself; 

 namely, in the neighbourhood of Castletown, in that county, 

 at about 1100 feet. 



Mr. Don mentions a " Spergula maxima — nova species," 

 in "the low parts of the county" of Angus. Spergula 

 pentandra, (Linn.) is " said to have been found in Ireland.'" 

 (Bab. Man.) ^^ /2^ ^r^'^-'^yr^ t>-i^L^ /u^/^ /v»i^«. y/A' t^ 



173. HoLOSTEUM dmbellatum, Linn. 



Area ^ ,^ ^ 4. 



South limit in Suffolk. 



North limit in Norfolk. 



