12. CARYOPHYLLACE^. 211 



from the lists of plants seen in the North and West High- 

 lands, and North Isles, by various other observers, I am 

 led to suppose that Dr. Neill mistook S. maritima for the 

 present species. Don states that S. apetala occurs spar- 

 ingly in Forfarshire, and I have a specimen from the vici- 

 nity of Perth. A rare plant within sixteen miles of Edin- 

 burgh, on the faith of the Botanical Society's Catalogue. 

 According to Hopkirk, common about Glasgow. 



170. Spergula saginoides, Li)w. 



Area ^^^^\p\^^^^^.^^ [13] * 15 * 17 [18]. 



South limit in Perthshire and Forfarshire. 



North limit in Sutherland. 



Estimate of provinces 3. Estimate of counties 6 or 8. 



Latitude -56 — 59. Highland type of distribution. 



Arctic region. Inferarctic — Midarctic zones. 



Descends to 650 yards, in East Highlands. 



Ascends to 850 yards, in same province. 



Range of mean annual temperature 40 — 38, 



Native. Rupestral. In the few spots in which I have 

 seen this species, it was growing in gravel by streams, or 

 among wet rocks ; so that it comes nearest to a rupestral, 

 though somewhat of a paludal or uliginal also. Mr. Ains- 

 worth reported that he found it on the Malvern Hills, in 

 the Severn province, which is supposed to be erroneous. 

 Dr. Philip Maclagan believes that he discovered it on the 

 Carrick Hill, Ayrshire, along with S. subulata ; but these 

 two being with difficulty distinguished, that habitat must 

 be deemed uncertain, for the present. Edmondston has a 

 plant under name of Arenaria saginoides, in his Shetland 

 Flora, which occurs in " dry gravelly places, frequent ; " is 

 it not the peutandrous form of Sagina procumbens ? There 



