34. CRASSULACE.E. 397 



being truly native in Shetland; and -as it is equally so on 

 the south coast of Englajid, I have not felt vrarranted in re- 

 jecting many of the intermediate localities, which otherwise 

 appear too doubtful for full reliance ; especially when we 

 keep in recollection that it has long been a plant of cottage 

 gardens, and is very tenacious of life. It stands as an in- 

 troduced plant, in the Floras of Moray and Aberdeen ; and 

 in the Orkney list, only on the single authority of Lowe. 

 I have observed it near Dumbarton, Perth, Kingussie and 

 Castletown, in the Highland provinces ; — too near houses, 

 and only near houses, in all these localities. On the whole, 

 the term ' denizen ' might be more appropriate in Scotland ; 

 although there appears no reason to question its nativity in 

 England. 



^^ /S^//y.^/ 41Q Seddm villosdm, Linn. 



Area * * * ^ ***** 10 11 12 13 14 15 16. 



South limit in Yorkshire and Westmoreland. 



North limit in Aberdeenshire, Moray, Argyleshire. 



Estimate of provinces 7. Estimate of counties 20. 



Latitude 54^ — 58. Scottish type of distribution. 



A. A. regions. Superagrarian — Inferarctic zones. 



Descends to 50 or 100 yards above the coast level. 



Ascends to 700 yards (?) in East Highlands. 



Range of mean annual temperature 46 — 40. 



Native. Uliginal. The ranges of this species are given 

 somewhat uncertainly, in connexion with altitude. Mr. 

 W. Wilson observed it "half way up the mountain" of 

 Ben Lawers, which is much higher than I have chanced to 

 see it, and which may be e\ en above the inferarctic zone. 

 On the other hand, some of the lowest spots in which it 



