12. CARYOPHYLLACE.E. 219 



be discovered elsewhere in the northern provinces of Eng- 

 land. Mr. G. S. Gibson, to whom I am indebted for a 

 specimen, thus describes the locality : — " Near the top of 

 Widdy-bank Fell, Teesdale, Durham, at an elevation of 

 about 1800 feet." I cannot decide, by my specimen, 

 whether to use the generic name of Arenaria or that of 

 Spergula, both of which have been applied tcJ this species, 

 the Spergula striata of Swartz. 



180. Arenaria verna, Linn. 



Area 1 * * * 5 6 7 8 9 10 11 12 13 14 15. 



South limit in Cornwall, (Somerset?), Derbyshire. 



North limit in Aberdeenshire and Perthshire. 



Estimate of provinces 12. Estimate of counties 25. 



Latitude 50 — 58. Scottish type of distribution. 



A. A. regions. Inferagrian — Midarctic zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 850 yards, in East Highlands. 



Range of mean annual temperature 52 — 38. 



Native. Rupestral. Intermediate between the Scottish 

 type of distribution and that which has been called the 

 Anglo-Cambrian section of the Local type. Very rare in 

 the Highlands, nor have I seen it there myself Mr. W. 

 Wilson reports it from Mael Duncrosk, Perthshire : " a very 

 small distance from Craig Calliach ; where, at nearly the 

 same elevation, A. rubella occurs, and where A. verna is not 

 found." It is on account of this station, that the altitude 

 of 850 yards is assigned for the present species. Varies 

 considerably, but not specifically, in the different localities 

 indicated for it. Mr. Babington refers the Cornish loca- 

 lity to the variety " Gerardi." 



